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Carding Philosophy: When to Check Your Cards
Welcome back, you degenerates, to another installment of my Carding Philosophy series. If you thought we were done dropping knowledge bombs, youre in for a treat. Today, were tackling a concept that'll make you rethink everything you know about card checking.
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.
Just like our deep dive into 'Appropriation', this isnt about quick gains. its about elevating your game from script kiddie bullshit to true carding artistry.
Here's some real shit for you: sometimes, the smartest move is to not use a checker at all. Yeah, you heard me right. In carding, knowing when to hold back can be just as crucial as knowing how to check.
I've seen too many of you burn through good cards by autistically over-checking good cards, and just as many miss prime opportunities because youre too cautious to check shit cards.
That shit stops today. By the end of this you'll understand not just how to use these tools but when to not use them at all.
This isnt just some optional trick you can take or leave. This is fundamental knowledge that every serious carder needs to have in their arsenal.
WHAT IS CARD CHECKING
Card checking, in its most basic form, is the process of validating whether a card is good for an actual purchase. its like dipping your toe in the water before diving in headfirst, youre testing if those string of numbers you've got is actually worth a damn.
Now, why the fuck would you need to do this? Let me paint you a few scenarios:
Cashing out: lets say you've got a buddy who's set up a storefront for you to cashout. You start punching in card after card, but they keep declining. Before you know it, your friend's store is flagged and shut down. Now youre left with a stack of potentially good cards and nowhere to use them. Congrats, you've just played yourself.
Preventing blacklisting: Picture this -- youre trying to card some sweet gear to your drop address. You try one card, it declines. No biggie, right? You try another, and another, and another. Suddenly, that address is radioactive. Now youre blacklisted, and good luck trying to get anything delivered there again, legit or not.
Less hiccups on bulk oeperations: You've got a big score lined up -- hundreds of gift cards youre planning to flip. But if you start that process with cards that are duds, you're not just wasting your time. you're leaving a trail that allows the AI fraud system to better create a fingerprint of your operation from the get go.
High-stakes carding: Imagine you've landed a big fish -- a connection promising high-limit (but low validity) business cards. were talking potential for five or six-figure hits. youre salivating at the thought of all that cash, ready to go all in on a massive purchase. If you fire off that monster transaction with an unchecked card and it flops, you've just lit a bonfire under your operation. Not only have you blown your chance, but you've also put every other card you will use from then on under a microscope.
The point is, blindly trying cards is like playing Russian roulette with your entire operation. One too many failed attempts, and you've just sent up a flare to the fraud detection system of the site you're trying to hit.
This is where card checking comes in. its your first line of defense against wasting time, burning resources, and most importantly, getting your ass blacklisted due to unnecessary declines. Now pay attention, because this is where most rookies fuck up: checking isnt always the answer. Sometimes, its part of the problem. In order to better understand it, lets look at how a standard payment flow works:
How do payments work
Before you start thinking youre hot shit with your checkers, you need to understand how credit card transactions actually work. its not just magic internet money – there's a whole fucking circus going on behind the scenes.
lets break it down:
Authorization: This is where the fun begins. When you swipe that card (or more likely, punch in those numbers), the merchant's asking the card issuer, "Yo, this card good for this amount?" The issuer checks the balance, credit limit, and whether the card's been reported stolen by some dipshit who cant keep track of their stuff. If all's good, they give the green light.
Capture: Once the merchant's got that authorization, they can capture the funds. Think of it like putting a hold on the money. its not in the merchant's pocket yet, but its sure as hell not in the cardholder's anymore.
Settlement: This is where the money actually moves. At the end of the day, the merchant sends all their captures to their bank. The bank then plays messenger, sending these requests through the card network to each issuing bank.
Funding: Finally, the issuing bank sends the cash to the merchant's bank, minus some fees because everyone wants their cut. The merchant's bank then deposits the funds into the merchant's account.
This clusterfuck of a process is the same exact reason why chargebacks take weeks to process: Its because this whole process has to happen in reverse, with extra steps for investigation. Banks arent exactly known for their speed, especially when it comes to giving money back.
Differences between checkers
Since card checking is just about validating if a card's good to go, the simplest way to do it is creating an account somewhere cheap and linking your card. Think Netflix, Grubhub, iTunes -- you get the idea. These services validate payment instruments, so its a basic way to see if your card's still breathing.
But this method's about as reliable as my drunk uncle at any of our family gatherings. Most of these sites have rate limits to prevent what they call 'card testing attacks'. That means if youre working with a fat stack of cards, its slow and brutally inefficient and youre out of luck.
Even worse, these methods can be inaccurate as fuck. Half the time, you cant tell if the card's actually declined or if you've just been cockblocked by their anti-fraud anti-card testing algorithm.
This is where card checking services strut in like they own the joint. These bad boys have been around since carding was in diapers. Services like 4check, Luxchecker, Goldcheck, and the legendary (now defunct) Try2check offer an easy way to check a bulk of cards. Just upload your list, and boom -- youre in business.
How do these checker services work
Now lets peel back the curtain on these checker services. They work by hacking merchant accounts -- hotels, gas stations, grocery stores you name it. They send your cards through these merchants for validation. What you get is a more accurate/consistent verification that can handle hundreds to thousands of cards per second.
Auth: This method authorizes a tiny amount on the card -- were talking cents up to a dollar. If the auth goes through, your card's confirmed live. The upside? its accurate as hell. Youre getting real-time confirmation straight from the bank.
But here's the catch: some BINs and banks are extremely sensitive to these microcharges. They can trigger fraud alarms and put cards in lockdown. So while your checker might say the card's dead, it could still work for actual purchases.
Simple: This method uses compromised merchant connections to scan real-time blacklists. its essentially asking, "Is this card flagged?" The beauty of this approach is its stealth. No auth charges hit the bank, so youre not risking the card's status.
However, the downside is reliability. Cards can show up as 'live' simply because they're not blacklisted, even if they're actually invalid or have insufficient funds. its like getting the green light to enter a club, only to find out your name's not on the VIP list.
In essence, Auth is your high-risk, high-reward play. Its accurate but can burn cards if youre not careful. Simple, on the other hand, is your safer bet. It wont harm your cards, but it might give you some false positives. As Ill explain later, there is a better approach in combining these two.
Now, here's something you need to keep in mind: these checker services arent infallible. Since these services rely on their own hacked merchant accounts, they're not immune to getting flagged by Visa, Mastercard, or the banks themselves. What does this mean for you? Well, when a checker's merchant gets flagged, it can start giving you inaccurate responses. Were talking about potentially killing cards that are actually good or telling you a card's alive when its dead.
This isnt just theory, it happened to Lux recently but they've supposedly fixed the issue by expanding their merchant pool. The takeaway? Always stay on your toes and be ready to switch checkers if you start noticing inconsistencies.
BIND CHECKERS
As I explained in my guide " A CrdPro Exclusive: Why the cards you bought never work, and what you can do about it. ," Bind Checkers are a last resort. These use hacked Stripe and Braintree API keys to validate cards, effectively blacklisting your card on these major payment platforms and their associated merchants.
Only use Bind Checkers on large, low-quality card lists you plan to use for small charges like streaming subscriptions. For anything else, especially with decent cards or bigger purchases, avoid these. They'll render your cards useless on a wide range of online merchants, severely limiting your options.
The only good thing about these checkers is they're dirt cheap. Stay away from them like theyre your crazy ex. In the future, I'll create a guide on how to make your own bind checker script using both Stripe API and Braintree API.
Checking Cards Strategically
Using checkers responsibly isnt rocket science. Here's how to keep your cards alive and kicking:
Extremely High Validity Cards: dont even think about checking these bad boys. its like asking a supermodel for ID at a club -- unnecessary and potentially insulting. Just go straight for the purchase.
High-Medium Validity Cards: Use simple checks if you must but you can often skip checking altogether. It depends on how trigger-happy the shop youre hitting is with declines.
Medium to Low Validity Cards: This is where it gets tricky. Use simple or auth checks, depending on how volatile the site is and how many cards youre willing to burn through.
Low Validity Cards: Start with auth checks. But remember, only use these on shops with medium to low security.
Now, lets visualize this strategy with a diagram that even a monkey could understand:
Sensitivity to checks also differ across banks and BINS. When doing an auth check, some BINs get extremely sensitive that you may need to cool them down a couple of hours first. Do your own research on these BINs.
Closing Remarks
Alright, that's the rundown on card checking. Remember, this shit isnt just about having the tools: its about knowing when and how to use them.
But dont think were done here. I've got more guides coming down the pipeline that'll make your carding game tighter than a nun's... well, you get the idea. And for you who want to explore this more, keep your eyes peeled for my upcoming guide on creating your own bind checker. That's right, were going full DIY on this bitch.
Until then, stay frosty, stay smart, and for fuck's sake, stop burning good cards. d0ctrine out.
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