They aren’t guessing. They’re buying leaked information online. The risk of credit card fraud isn’t from physical insecurity (someone stealing it) it’s from online insecurity, mostly from leaks from major retailers or credit card companies. You can’t really do anything to prevent this, but fortunately there’s a huge industry organized to manage this risk and reimburse stolen funds. Answer from ElbieLG on reddit.com
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Reddit
reddit.com › r/creditcards › 1 million stolen credit cards given away free on dark web
r/CreditCards on Reddit: 1 Million Stolen Credit Cards Given Away Free On Dark Web
2 March 2025 -

Good reminder to keep on top of your accounts and to be cautious online —

A Feb. 21 report by Andrea Draghetti, the head of threat intelligence at D3Lab, revealed that a well-known illegal marketplace and carding site called B1ack Stash has dropped a free giveaway of more than a million stolen credit cards to its users. The “massive collection of sensitive data containing over 1 million unique credit and debit cards,” was published to the criminal forum on Feb. 19 and contained six archives comprising a total of 1,018,014 cards.

It is understood that the data included such highly sensitive information as the primary account number of the credit cards concerned, along with expiration dates and the card verification value, CVV2, security code. But that’s not all; there are also cardholder details such as their full name, address, date of birth and telephone number as well as email address. Pretty much everything you would need to commit credit card fraud or launch phishing attacks against the cardholder.

Full article is available here. The original D3Lab announcement is available here.

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LambdaTest
lambdatest.com › home › free tools › credit card number generator
Free Credit Card Generator Online – Visa, Luhn, CSV
Free credit card number generator for testing. Create fake Visa, Mastercard, Amex numbers instantly. Luhn-verified. Output in JSON or CSV
People also ask

What to Do If Your Credit Card Information is Stolen

Federal law can limit the amount of money you’re liable for in the event of identity theft when you use credit cards to make purchases, so long as you respond quickly. Also, some credit card issuers are all too aware of the problem and may voluntarily agree to limit losses and help consumers.

Millions of American consumers have been through this. Stay alert to the possibility that it could happen to you, even after taking every precaution, and plan to take action quickly to limit the losses and regain your identity.

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discover.com
discover.com › card smarts › using your credit card › stolen credit card numbers
Stolen Credit Card Numbers | Discover
What can you do to help protect your credit card information from being stolen?

Be mindful of all the ways thieves can get your credit card numbers and be aware of when you’re vulnerable. Watch your mail, be careful interacting with emails, know what you’re downloading, don’t open your financial accounts on public Wi-Fi networks, look carefully for signs of tampering at gas pumps and other automated credit card readers, and watch the news for data breaches at big companies—they happen more than you might think.

Most credit cards use chip technology, rather than a magnetic strip, as these are designed to be more difficult to hack for in-store purchases where chip readers are enabled. Unfortunately, despite the switch to chips, instances of credit card fraud keep going up every year—while the chips make in-store fraud more difficult, potential identity thieves are always exploring new ways to navigate around protections to access your information. The best advice is to keep your eyes on your credit card statements, credit report, and credit score, so you’ll be aware of any sudden changes that could indicate identity theft.

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discover.com
discover.com › card smarts › using your credit card › stolen credit card numbers
Stolen Credit Card Numbers | Discover
How to Catch Someone Who Stole Your Credit Card

If you run into an issue with stolen credit card numbers, it’s generally pretty difficult to actually track down the perpetrator and even less likely that they’ll be apprehended or face prosecution. The best way to resolve the issue is to take the above steps in reporting the theft of your credit card information to your card issuer and leave the rest to the authorities.

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discover.com
discover.com › card smarts › using your credit card › stolen credit card numbers
Stolen Credit Card Numbers | Discover
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BrowserStack
browserstack.com › free-tools › credit-card-number-generator
Free Credit Card Number Generator Online | BrowserStack
3 December 2025 - Our Credit Card Number Generator offers an easy and reliable solution for developers, testers, and businesses to generate valid-looking credit card numbers for a variety of testing scenarios. Whether you are verifying payment forms, simulating transactions, or testing security features, BrowserStack’s Credit Card Generator helps you do so quickly and accurately without needing real credit card data.
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Reddit
reddit.com › r/personalfinance › how easy is it (really) for thieves to guess a card number
r/personalfinance on Reddit: How easy is it (really) for thieves to guess a card number
27 January 2024 -

My wife and I never use our debit cards. We always keep them locked via the bank app and stored away at home. We never have visitors at home.

Yet

Someone attempted to use her card for audible purchases. The bank actually let the first transaction through, even though we had the card locked, because the merchant tagged it as a recurring payment. The thief then attempted a larger transaction which my bank declined.

We’re actually annoyed the bank allowed the first transaction. We never use our debit card, and only (rarely) get cash from an atm, and always the bank’s atm at a branch.

My ultimate question is, though, how easy is it,l for thieves to guess card numbers. Because, if any merchant can tag any transaction as “recurring”, then this is problematic for cash account safety. Especially if the card lock feature can be bypassed

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SpyCloud
spycloud.com › home › why cardholder data on threads is a growing risk for fraud & security teams
Credit Card Data on Threads: Risk Insights for Fraud Team
26 June 2025 - You may be wondering why threat actors would post full credit card details for free, but it’s actually a fairly common criminal advertising tactic. In most cases, actors post the details of a limited number of stolen cards as a way to advertise that they have a larger and constant stream of fresh cards available for purchase.
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Discover
discover.com › card smarts › using your credit card › stolen credit card numbers
Stolen Credit Card Numbers | Discover
15 January 2025 - Dealing with stolen credit card numbers is a hassle. Learn what to do if your credit card information is stolen.
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Waterdogtechsolutions
waterdogtechsolutions.com › home › threat post: 1m stolen credit cards hit dark web for free
Threat Post: 1M Stolen Credit Cards Hit Dark Web For Free - Waterdog Technology Solutions Unleashed
20 October 2022 - Read the original article at The ... cybercriminal site for selling payment credentials online. Threat actors have leaked 1 million stolen credit cards for free online as a way to promote a fairly new […]...
Find elsewhere
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U.S. Embassy in France
fr.usembassy.gov › home › u.s. citizen services › lost and found property in paris › phone numbers for lost or stolen credit cards
Phone Numbers for Lost or Stolen Credit Cards - U.S. Embassy & Consulates in France
17 November 2023 - BANK of AMERICA CARD 24/7 Service Credit Cards: (001) 800 732 9194 (001) 757 677 4701 ATM Cards or Check Books: (001) 800 432 1000 (001) 315 724 4022 · VISA 24/7 Service 0800 901 179 (toll-free) (001) 303 967 1096
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Norton LifeLock
lifelock.norton.com › learn › scams & fraud › how do people steal credit card numbers?
How do people steal credit card numbers?
30 October 2024 - Stolen credit card numbers are often sold on the dark web for as little as $5. These numbers come from data breaches, phishing attacks, or skimmers.
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Cyberint
cyberint.com › blog › other › b1acks-stash-a-comprehensive-analysis-of-the-free-1-million-card-leak
B1ACK’S STASH: A Comprehensive Analysis of the Free 1 Million Card Leak
1 October 2024 - B1ack’s Stash, a new dark web marketplace, recently gained significant attention by releasing 1 million stolen credit card details for free upon their debut on April 30, 2024. The carding shop promoted this giveaway through several known carding forums on the darknet to attract a larger customer base.
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Aura
aura.com › learn › how-do-people-steal-credit-card-numbers
14 Ways Scammers Can Steal Your Credit Card Numbers
14 March 2024 - File an identity theft report with the Federal Trade Commission (FTC). Use the free tools at IdentityTheft.gov. This will provide you with documentation you may need later. Report the fraud to your local law enforcement.
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Microsoft Support
support.microsoft.com › en-gb › topic › what-to-do-if-your-credit-or-debit-card-info-is-stolen-c049d38b-7c55-42e8-afba-09f468a6c27d
What to do if your credit or debit card info is stolen - Microsoft Support
Here are a few easy things you ... getting stolen or used fraudulently. Using your card online? See if your credit card company offers virtual cards that you can use. Most of them offer this service now at no charge. The way this generally works is that you install a browser extension from ...
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Forbes
forbes.com › forbes homepage › innovation › cybersecurity
1 Million Stolen Credit Cards Given Away Free On Dark Web Forum
15 May 2025 - Which isn’t to say that carding is dead. Far from it, it would seem. A new report has revealed that the B1ack Stash crime forum has just given away more than a million stolen credit cards for free.
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IronVest
ironvest.com › blog › how-people-steal-credit-card-numbers
How people steal credit card numbers: 8 methods – IronVest
Discover how people steal credit card numbers to better protect your finances. Learn about common fraud methods, signs of theft, and preventive measures.
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Enzoic
enzoic.com › blog › credit card fraud: how does it work?
Credit Card Fraud: How Does It Work? | Enzoic
6 March 2025 - A deep dive into some real-live techniques and scripts used by threat actors to commit credit card fraud. See the actual steps involved.
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TechTarget
techtarget.com › whatis › feature › How-do-cybercriminals-steal-credit-card-information
How Do Hackers Steal Credit Card Information? | TechTarget
For example, someone pretending to be from your issuing bank or credit card company calls and says they need to verify your recent credit card activity with some personal information and asks for your credit card number. Similarly, a phishing email sent by an attacker posing as a retailer that offers you a discount or free items could be trying to trick you into giving up payment card account details.
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Threatpost
threatpost.com › 1m-stolen-credit-cards-dark-web › 168514
1M Stolen Credit Cards Hit Dark Web for Free | Threatpost
10 August 2021 - A dump of hundreds of thousands of active accounts is aimed at promoting AllWorld.Cards, a recently launched cybercriminal site for selling payment credentials online.
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Ask the Police
askthe.police.uk › view-category
Credit / Debit Cards
The bank/credit card company will investigate the matter and where appropriate inform the police. If your card has been lost or stolen then you need to report this to the police who will record the crime or loss.
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Reddit
reddit.com › r/creditcards › numbers keep getting stolen; credit cards without printed or embossed numbers?
r/CreditCards on Reddit: Numbers keep getting stolen; credit cards without printed or embossed numbers?
13 January 2025 -

One of my credit card numbers has been stolen about every other year for the past five years, and I suspect it has been from restaurants. It always is the card that I use primarily for in-person transactions and some subscriptions. I use PayPal or virtual cards online, use tap to pay whenever possible, the card isn't anything fancy or prestigious, and my gas station card hasn't been stolen so it doesn't seem to be from skimmers at the pump. It's enough of an annoyance to change the card each time that I'd like to reduce the chances of it being stolen.

Is this a common problem, or is this somehow impacting me more than others?

Are there credit cards that don't have any numbers on them, similar to how the Apple card worked, or ways to request that? I have no need for physical numbers on the card, I'd rather have that in an app or just stored digitally. It has been surprisingly difficult to find any information about cards without physical numbers; it seems to be more common internationally but I haven't found anything in the US other than the Apple Card.

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Ofcom
ofcom.org.uk › online-safety › online-fraud › how-easy-is-it-to-find-stolen-credit-card-details-drugs-and-weapons-online
How easy is it to find stolen credit card details, drugs and weapons online?
21 September 2023 - Google Search and Bing are linking in their top 20 search results to sites that claim to supply stolen credit card details, drugs and weapons, according to new research published by Ofcom.