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zymba

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?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
TY
 

rudy

Carding Novice
Joined
29.08.25
Messages
18
Reaction score
3
Points
3

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
thanks
 

mrlr

Carding Novice
Joined
02.05.25
Messages
4
Reaction score
0
Points
1

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

PayPal Standard Checkout kullanan bir Shopify mağazasıyla iş yaparken, sistemlerini nasıl bozacağımızı anlatacağız:
  1. Eşyalarınızı sepete ekleyin ve ödeme işlemine geçin
  2. Kargo bilgilerinde KART SAHİBİNİN GERÇEK ADRESİNİ girin
    • Bu çok önemli - PayPal'ın güvendiği bir adres görmesi gerekiyor
    • PayPal'ın kart kayıtlarında bulunan bilgilerle eşleştiğinden emin olun
  3. 'İleri'ye tıklayın ve ödeme sayfasında 'PayPal ile Öde' düğmesine tıklayın
    • PayPal güvenilir bir teslimat adresi görüyor
    • Sahtekarlık tespitleri sıcak ve bulanık bir his yaratıyor
    • Yetkilendirme sorunsuz bir şekilde gerçekleşir
  4. İşte sihir burada gerçekleşiyor:
    • PayPal yetkilendirmesinden sonra ancak nihai onay ÖNCESİNDE
    • Shopify, siparişinizi son bir kez 'incelemenize' izin verecektir (mağaza Hızlı Ödeme'yi kullanmıyorsa, bu durumda işlem anında devam edecektir)
    • Bu, gönderim adresinizi bırakma adresinize değiştirdiğiniz zamandır
    • PayPal'a zaten onay verildi, tekrar kontrol etmeyecekler
  5. Son 'Şimdi Öde' butonuna basın
    • PayPal'ın önceden yetkilendirilmiş belirteci aracılığıyla işlem süreçleri
    • Shopify güncellenmiş gönderim bilgilerinizi alır
    • Paket kart sahibine değil, teslimat noktanıza gidiyor


Bu Nasıl ve Neden Bir Cazibe Gibi İşliyor?

*** Gizli metin: alıntı yapılamaz. ***




Son Düşünceler

İşte karşınızda - PayPal ödeme sistemindeki kutsal kart sistemi. Duvara bir şeyler atıp bir şeylerin işe yaramasını ummuyoruz. Bu, ödeme akışlarındaki temel bir kusurun hesaplı ve hassas bir şekilde istismar edilmesidir.

Ama unutmayın ki bu 'hızlı zengin olma' saçmalığı değil. PayPal'ın dolandırıcılık tespit sistemi hala bir canavar.

Ve lütfen OPSEC'inizi sıkı tutun. Kazançlarınızı çeşitlendirin , satın alma miktarlarınızı değiştirin ve aynı PayPal hesabını asla iki kez kullanmayın.

Ders bitti. Şimdi gidip o parayı kazan - ama köşe keserek her şeyi mahvettiğinde bana ağlayarak gelme.

d0ctrine dışarı.
Teşekkür
 

risk4u

Carding Novice
Joined
04.03.25
Messages
12
Reaction score
3
Points
3

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
Thank alot man
 

Aitisnakee

Carding Novice
Joined
11.07.25
Messages
6
Reaction score
1
Points
1

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
ty
 

Noko

Carding Novice
Joined
23.08.25
Messages
15
Reaction score
1
Points
1

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
ty
 

lolx

Basic
Joined
09.09.25
Messages
9
Reaction score
1
Points
1

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
thx
 

6mob18

Carding Novice
Joined
10.09.25
Messages
6
Reaction score
0
Points
1

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
Good stuff
 

6mob18

Carding Novice
Joined
10.09.25
Messages
6
Reaction score
0
Points
1

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
Good stuff
 

keyu

Carding Novice
Joined
03.09.25
Messages
11
Reaction score
1
Points
3

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

当您使用PayPal标准结账方式与Shopify商店打交道时,我们将如何处理他们的系统:
  1. 将您的商品添加到购物车并继续结帐
  2. 在运输信息中输入持卡人真实地址
    • 这很关键——PayPal需要看到他们信任的地址
    • 确保它与PayPal 的卡记录相符
  3. 点击“下一步”,然后在付款页面上点击“使用 PayPal 付款”按钮
    • PayPal看到一个值得信赖的送货地址
    • 他们的欺诈检测让人感觉很温暖
    • 授权过程顺利
  4. 奇迹就在这里发生:
    • PayPal授权后,最终确认前
    • Shopify会让您最后一次“审核”您的订单(除非商店使用快速结账,在这种情况下它将立即进行交易)
    • 这是当您将送货地址切换到您的送货地址
    • PayPal已经同意了,他们不会再检查
  5. 按下最后一个“立即付款”按钮
    • 通过PayPal预授权令牌进行交易
    • Shopify获取您更新的送货信息
    • 包裹将寄送至您的投递处,而不是持卡人处


这种方法为何有效

*** 隐藏文本:无法引用。***




最后的想法

所以,你看,PayPal结账流程的“圣杯”漏洞就暴露无遗了。我们可不是随便扔点东西,指望着墙上能粘住点东西。这是精心策划,精准利用了他们结账流程中的一个根本缺陷。

不过记住——这可不是什么“快速致富”的鬼话。PayPal欺诈检测功能依然很强大。

还有,操他妈的,一定要保证你的操作安全。混合使用你的掉落物品,改变你的购买金额,并且永远不要重复使用同一个PayPal账户。

下课了。现在去赚钱吧——别等你偷工减料把事情搞砸了再来找我哭诉。

教义出来了。
good
 

mesojunaid

Active Carder
Joined
12.03.25
Messages
29
Reaction score
3
Points
8

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
lets try out
 

GEAZZ514

Active Carder
Joined
23.06.25
Messages
40
Reaction score
2
Points
8

?️ PayPal Checkout Method ?️


PayPal is fucking everywhere. Every major retailer every dinky little Shopify store theyre all waving that blue and yellow buttons in your face. But most carders treat PayPal checkouts like kryptonite and for good reason. Those clever bastards at PayPal have been beefing up their anti-fraud systems year after year making it a goddamn nightmare to get through their checkouts.

View attachment 49759

But heres where it gets interesting - Ive been sitting on a method thats been consistently hitting PayPal checkouts for the past two years. This is a fundamental design flaw in their system that they cant just patch away with a quick update. And today Im going to break it down for you step by bloody step.


Disclaimer: The information provided in this writeup and all my writeups and guides are intended for educational purposes only. It is a study of how fraud operates and is not intended to promote, endorse, or facilitate any illegal activities. I cannot be held liable for any actions taken based on this material or any material posted by my account. Please use this information responsibly and do not engage in any criminal activities.


PayPal Checkout Flow

View attachment 49760


Before we dive into the exploit lets break down how PayPals checkout flow actually works. There are two main paths a transaction can take:

PayPal Express Checkout (Immediate Payment)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal for payment
  • Payment processes immediately on PayPals end
  • Customer returns to store with completed transaction
  • No additional confirmation needed
  • Common on basic ecommerce sites

PayPal Standard Checkout (Two-Step Process)
  • Customer hits 'Pay with PayPal' button
  • Gets redirected to PayPal to authorize (but not process) payment
  • Returns to merchant site with PayPal token
  • Can still modify shipping/billing details
  • Must hit final 'Pay Now' button to complete
  • Used by larger retailers for flexibility

View attachment 49766

This second flow - the Standard Checkout - is where our vulnerability lies. That gap between authorization and final processing? Thats our golden ticket. The two-step process creates a window of opportunity that PayPals fraud detection cant easily close without breaking legitimate functionality.


⚠️ ALERT ⚠️

One of the ways antifraud systems detect and reject your transactions is by looking up if the card has been used in other places. What this means is that cards that are resold across multiple shops, that are often rechecked for validity, will get outright rejected.
Luckily, BinX has a free tool to help you assess if the card you are about to buy is being resold across different shops. And the best part is that it's all FREE:

Now you'll know if the card is bad even before you buy it.
Check it out at:
https://binx.cc/tools/resell
BinX.CC | BinX.PW

⚠️ ALERT ⚠️


PayPals Fraud Detection

PayPals fraud detection is a multi-layered beast thats been fine-tuned over decades of fighting fraudsters. At its core its built around one critical insight - shipping addresses dont lie. While most payment processors obsess over browser fingerprints and IP PayPal knows that physical orders leave a paper trail you cant fake. Theyve built an extensive database of trusted delivery locations tied to every PayPal account and card thats ever touched their system.


Think about it - that $5 shit card youre trying to use? Chances are its legitimate owner has ordered something through PayPal at some point in their life. PayPal already knows their home address their work address their moms house where they ship Christmas presents. Every successful transaction leaves a footprint in PayPals massive web of trusted locations. When you try to ship that 65-inch TV to some random address theyve never seen before alarm bells start ringing.

This obsession with shipping addresses extends beyond just individual transaction history. PayPals algorithms analyze delivery locations across their entire network building heat maps of legitimate commerce versus suspicious activity. They know which zip codes have high fraud rates which addresses are associated with drops even which buildings tend to see unusual shipping patterns. Your seemingly innocent order gets run through this long list of location-based risk factors before it ever hits the payment processing stage.


But what makes PayPals fraud detection truly formidable is how it combines this shipping intelligence with their massive user data set. Nearly every adult in the US has interacted with PayPal at some point - whether through direct purchases receiving payments or just creating an account they never used. Each of these interactions feeds into their risk models creating an intricate web of trusted relationships and verified behaviors thats nearly impossible to penetrate with traditional carding techniques.



Why Bill=Ship Trick Doesn't Work



Good luck. Unlike regular credit card transactions most sites wont let you change jack shit once a PayPal payment goes through. And theres a damn good reason for that - PayPal is basically their fraud-free guarantee.

Think about it: When you pay with a credit card sites put you through a fraud checks upon fraud checks and all sorts of verification bullshit. But pay with PayPal? That shit gets packed and shipped next day no questions asked. Why? Because these merchants know PayPals fraud detection is god-tier. Theyve seen PayPals track record of shutting down fraudsters and they trust it more than their own mothers.

The merchants logic is simple: Nobodys stupid enough to try carding through PayPal. The risk models are too sophisticated and the data set is too massive. So when they see a PayPal payment come through they treat it like its blessed by the fraud prevention gods themselves as long as no info is changed after payment.



The Shipping Address Switcharoo

Heres where shit gets interesting. Remember that two-step PayPal Standard Checkout flow we talked about? That gap between authorization and final processing isnt just a quirk - its our fucking hammer. To better get the point across lets illustrate it with a random Shopify store.

View attachment 49771

When youre dealing with a Shopify store using PayPal Standard Checkout heres how were gonna fuck with their system:
  1. Add your shit to cart and proceed to checkout
  2. At shipping info enter the CARDHOLDERS REAL ADDRESS
    • This is crucial - PayPal needs to see an address they trust
    • Make sure it matches what PayPal has on records for the card
  3. Click 'Next' and on the payment page hit that 'Pay with PayPal' button
    • PayPal sees a trusted shipping address
    • Their fraud detection gets a warm fuzzy feeling
    • Authorization goes through clean as a whistle
  4. Heres where the magic happens:
    • After PayPal authorization but BEFORE final confirmation
    • Shopify will let you 'review' (unless the store uses Express Checkout in which case it will proceed with the transaction instantly) your order one last time
    • This is when you switch that shipping address to your drop
    • PayPals already given their blessing they aint checking again
  5. Smash that final 'Pay Now' button
    • Transaction processes through PayPals pre-authorized token
    • Shopify gets your updated shipping info
    • Package heads to your drop instead of the cardholder


How and Why This Works Like A Charm

*** Hidden text: cannot be quoted. ***




Final Thoughts

So there you have it - the holy grail carding PayPal checkout laid bare. Were not just throwing shit at the wall here and hoping something sticks. This is calculated precise exploitation of a fundamental flaw in their checkout flow.

Remember though - this aint some 'get rich quick' bullshit. PayPals fraud detection is still a beast.

And for fucks sake keep your OPSEC tight. Mix up your drops vary your purchase amounts and never reuse the same PayPal account twice.

Class dismissed. Now go make that money - just dont come crying to me when you fuck it up by cutting corners.

d0ctrine out.
rhrh
 
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