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Crooks Nab Citibank ATM Codes, Steal Millions

An anonymous reader writes "Citibank is reissuing ATM cards following a December server breach in which hackers stole customer PIN codes, Wired reports. In recent months the FBI has arrested 10 people in the New York area who were allegedly involved in using the codes to steal over $2 million from Citibank checking and savings accounts, including two Ukrainian immigrants who were each caught with $800,000 in cash stashed in boxes and shopping bags in their homes. Some of the suspects are cooperating, telling the feds that they've been working for a Russian hacker. They use magstripe writers to encode the stolen account numbers onto blank cards, then hit ATMs in New York, and transfer 70% of the loot back to Russia."

26 of 282 comments (clear)

  1. Further development on the case by elrous0 · · Score: 5, Funny

    Authorities report that the two Ukrainians, identified as cousins Niko and Roman Bellic, were released from police custody after police confiscated their guns and took 10% of their money. The pair subsequently stole several cars and went on a killing spree with an RPG they found on a nearby rooftop.

    --
    SJW: Someone who has run out of real oppression, and has to fake it.
  2. FP by Anonymous Coward · · Score: 5, Funny

    In Soviet Russia, the ATM robs you

  3. Fixed. by bigstrat2003 · · Score: 5, Funny

    Citibank is reissuing ATM cards following a December server breach in which hackers stole customer PIN codes... I believe you misspelled "ATM machine cards" and "PIN numbers", sir. Please correct this oversight as soon as is convenient for you.
    --
    "16MB (fuck off, MiB fascists)" - The Mighty Buzzard
    1. Re:Fixed. by statemachine · · Score: 4, Funny

      Wait, wait! I need to attach a wind turbine to this thread.

      OK, go.

  4. initialisms by syrinx · · Score: 4, Funny

    two Ukrainian immigrants who were each caught with $800,000 in cash stashed in boxes and shopping bags in their homes.

    I assume the boxes and bags all had big dollar signs on the side of them.

    Also, I'm extremely impressed that TFS (I didn't RTFA, of course) had no incidents of "ATM machine" or "PIN number".

    --
    Quidquid latine dictum sit, altum sonatur.
  5. Time to look into other means of security by pwnies · · Score: 4, Interesting

    ...other than just a pin code?

    Maybe it's just me, but a simple 4 digit number doesn't provide all that much security in my mind. How easy is it to simply glance over someone's shoulders and read their pin? Aren't there any means of verifying user identity in a quick secure manner?

    I know that some banks will send their users a text message with a confirmation code, but this seems a bit inconvenient (cell battery can die, text can take a long time to arrive, etc.). Anyone on /. have any ideas?

    1. Re:Time to look into other means of security by pclminion · · Score: 4, Insightful

      What difference is the PIN going to make when the way they were acquired in the first place was by breaking into a database?

      This problem is already solved. It's called an RSA dongle. "Oh, but it's a pain!" So is having your checking account cleared out.

    2. Re:Time to look into other means of security by Gat0r30y · · Score: 5, Funny

      My personal solution: being broke as hell.

      --
      Prediction: The real iPhone killer is going to be sex robots from Japan. Think about it.
    3. Re:Time to look into other means of security by The+Warlock · · Score: 4, Insightful

      I imagine it's a lot easier to type in a PIN stolen from a database than it is to, um, change your thumbprint or the pattern of the veins in your retina to one stolen from a database.

      Perhaps I'm missing something.

      --
      I've upped my standards, so up yours.
    4. Re:Time to look into other means of security by Kickersny.com · · Score: 5, Insightful

      Biometrics, of course. Fingerprint scanning, retinal scanning, voice recognition, or whatever. It's the only way to really verify. The problem is how expensive it would be to refit existing ATMs.

      The trouble with biometrics is that it can't be changed. Additionally, the various ways have bad flaws:

      • Fingerprints are a terrible idea because you leave a copy of your private key on everything you touch.
      • Voice recognition is a terrible idea because everyone within earshot can hear your private key.
      • Retinal scanning would fail if someone was in an accident or had surgery or something.

      As a general rule, I wouldn't use my fingerprint to protect anything that's worth more to a criminal than my finger is to me.
      http://news.bbc.co.uk/2/hi/asia-pacific/4396831.stm

    5. Re:Time to look into other means of security by edraven · · Score: 5, Interesting

      Retinal scanning would fail if someone was in an accident or had surgery or something. Or just went on a bender last night. I knew a guy who loved to tell the story of when he was consulting at a military installation that employed retinal scanners among other security measures. He went out drinking one night and the next day when he reported for work he was a little bloodshot and the scanners didn't recognize him. And the metal walls came down while the guys with shotguns were summoned...
    6. Re:Time to look into other means of security by gnick · · Score: 4, Insightful

      No - he's spot on. Of course biometric scanners can be deceived. His point is that it's much more difficult to trick a fingerprint scanner than it is to type in four numbers. There's no infallible way to secure the machines - But they could be made much more secure without a major inconvenience to the end user.

      The big problem is the expense of implementation.

      --
      He's getting rather old, but he's a good mouse.
    7. Re:Time to look into other means of security by j00r0m4nc3r · · Score: 4, Insightful

      Of course biometric scanners can be deceived. His point is that it's much more difficult to trick a fingerprint scanner than it is to type in four numbers.

      When there's $2+ million on the line you can bet the baddies will take the time to work out a solution.

    8. Re:Time to look into other means of security by sm62704 · · Score: 4, Funny

      Maybe it's just me, but a simple 4 digit number doesn't provide all that much security in my mind. How easy is it to simply glance over someone's shoulders and read their pin?

      I no longer use a debit card for that very reason - my bank account was cleaned out by a woman I took pity on. She'd been strung out on crack and had nothing left but the clothes on her back. She wanted to dry out and get into rehab. So I stupidly let her stay at my apartment for a week.

      During that week she obviously watched over my sholder at the ATM, then stole a book of checks. And the keys to my car I'd only made one payment on.

      The bank made good on the forged checks, but not the ATM. Their rationale was that if the person had the PIN the only way to get it was have it given to them!

      I journaled about it her:
      Ask Slashdot: Women
      The Crackwhore and the Nerd
      Party Like It's 1976

      --
      mcgrew's razor: Never attribute to stupidity that which can be explained by greedy self-interest
  6. Server was breached in December.... by zonky · · Score: 5, Insightful

    yet only in June do they issue new pins? Nice.

  7. I was hoping... by Lester67 · · Score: 4, Funny

    ...that with the U.S. Dollar in the shitter, the Russians would start picking on someone else.

  8. Re:Tall on story, light on details by supersat · · Score: 5, Insightful

    PINs are encrypted and sent across the network. These crooks managed to intercept the PINs at one of the servers that processed them.

    If PINs were checked locally, then every ATM would need to be able to determine the correct PIN for every card inserted into it, which means that one of them could be turned into a PIN-producing machine.

  9. My favorite part... by InlawBiker · · Score: 4, Insightful

    From the article: "...What's more, neither Citibank nor the third-party transaction processor involved in the breach has warned consumers to watch for fraudulent withdrawals, raising questions about the disclosure policies in the financial industry. Citibank spokesman Robert Julavits says the bank "has complied with all applicable notification requirements."

    But according to the Payment Card Industry's own rules and the disclosure laws of NY, in the event of a breach the company must follow these rules:

    * Notification: Most expedient time possible, without unreasonable delay

    * Civil or criminal penalty for failure to promptly disclose

    So in other words they were more than happy to keep this secret to themselves.

  10. Mine is more than 4 digits... maybe by PCM2 · · Score: 5, Interesting

    I have a Bank of America ATM card that has a six-digit PIN. The really interesting thing, though -- which I discovered by accident -- is that on Bank of America ATMs you can simply enter the first four digits and then as many random digits as you want and the code works.

    In other words, say my PIN is 443672. I can enter 4436, 44367, or 4436987899979 and it will always work. This seems like a fairly serious security flaw, to me.

    I know what you're thinking: "Sounds like you really only have a 4-digit PIN." But no! On other kinds of machines, say at the supermarket, I always have to enter in all 6 digits accurately. It's only Bank of America ATM machines where this is true.

    In the past, I have thought about raising this issue with Bank of America, but I have no idea how to approach them such that I can speak to somebody clueful.

    --
    Breakfast served all day!
  11. Depends on how you use biometrics by cheros · · Score: 4, Informative

    Disclaimer: I just joined the company that has dreamt up this stuff..

    For the use of biometrics to be safe you need the following conditions:

    1 - it must still be a combination of what you KNOW and what you have. The solution is to name the fingers, i.e. think of a word like "fox" and then give a character to each finger. Only you know which finger you have called "f", "o" and "x".
    2 - biometrics are yours. They have no place in a central database where anyone can make a mess by replacing or erasing them, and what isn't stored cannot be abused. Thus: using biometrics to replace PIN code is fine by me, provided it stays local to the device. In other words, the prints are a device/token enabler, not the actual method of authentication and/or authorisation. Oh, and the relevant storage area should not be accessible other than by the token comparator engine - export MUST be made verifiably impossble.
    3 - "detached" and fake fingerprints should be rejected. Solution: don't be a cheapskate when you build this stuff and use the best, RF based reader. Even if you make the fake prints conductive it's going to be VERY hard (we've tried).

    Biometrics are good because you can't forget them. But they're yours, and yours only.

    --
    Insert .sig here. Send no money now. Owner may sue, contents will settle. Batteries not included.
  12. I'm a Citibank customer by drusifer2 · · Score: 4, Interesting

    I'm a Citibank customer here in New York and I am one of those who is getting their card reissued. Citibank did notify me of the breach through one of those alerts on their web site but the alert was several months after the breach was discovered (I got it on June 3rd to be precise). They didn't specifically mention the date of the incidents and I have no good way of validating all the charges to my ATM card. Pouring over several months of statements is not easy when you don't know what you are looking for.

    In the alert they claim that a third party ATM network was breached but they didn't say which company's ATMs where hit. I even called and tried to find out but they wouldn't/couldn't tell me. The customer support person just kept saying "Sir, Your card was breached" as if the problem was with my ATM card. Here in NY there are tons of independent ATMs around which charge anywhere from $1-$3 for withdrawal (Maybe they could use some of those fees for security). If I knew which one f'ed up I would spend my withdrawal fees elsewhere.

    Citi also botched sending me a new card twice so now they've disabled my old card and have yet to send me a new one. I guess I don't have to worry about those pesky fees for a while.

  13. If you're a Citibank customer by Solandri · · Score: 4, Informative
    And wondering if you're affected, the compromised PINs seem to have been used at ATMs in 7-Eleven stores. Reposting here since the summary didn't mention it and it was buried near the end of the article.

    Citibank emphasizes that customers aren't responsible for fraudulent withdrawals. But the bank won't say how many consumers had their information stolen in the attack. Court documents suggest the breach is limited to those who made withdrawals during the period that the server was actively compromised. But the bank won't reveal what that period was.

    Also unclear is who was responsible for the server that was attacked, and why PIN codes, which are supposed to be transmitted only in encrypted form, were vulnerable. An FBI affidavit in the case blames a Citibank-owned server responsible for processing transactions from 7-Eleven convenience stores. But Citibank blames an unnamed "third party" transaction processing firm.

  14. Re:Thats why... by Beardo+the+Bearded · · Score: 4, Insightful

    It's why I moved all my purchasing from debit to credit.

    The dispute resolution for M/C is a lot easier:

    "I didn't buy this."

    "Okay, reversed."

    vs. the bank:

    "I didn't make that withdrawal."

    "Well, we'll have to review the security tapes, check your whereabouts, and in 12-16 months, we'll credit your account."

    Also, I get 1% cash back on the M/C. And no, I don't carry a balance.

    --

    ---
    ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
  15. The Solution by IMustBeNewHere · · Score: 4, Insightful

    The EMV-card.

    On this type of card, the magnetic strip is replaced by a microcontroller with various cryptographic features (aka smart card) that are supposed to secure transactions and make the card a PITA to clone.

    http://en.wikipedia.org/wiki/EMV

    It is a quite recent innovation. It was only standardized oh ... 9 years ago, and its backers - VISA and Mastercard - are relatively unknown companies.

    This is probably why many banks are wary about issuing EMV cards yet ... or that they are cheapskates. I'm not sure which.

  16. Re:Thats why... by encoderer · · Score: 5, Informative

    You're confusing two issues: An ATM Withdrawal and a Purchase.

    Any Debit Card with a Visa or MC logo carries fraud protection. They both require that funds be put back into your account within 5 business days, and many banks do it same-day, mine included. This includes provisions for overdrafts that happened because of the fraudulent deduction.

    In fact, on the Visa website, you'll see that the Debit Card page and the CC page both point to the same "Zero Liability" page.

    The Zero Liability policy covers all Visa credit and debit card transactions processed over the Visa networkâ"online or off. The only transactions not covered under the Zero Liability policy are commercial card, ATM, and non-Visa-branded PIN transactions.

    Of course, as I said, you confused 2 issues: Purchases and PIN-Based ATM withdrawals.

    If you take a cash advance from your CC at an ATM using your PIN, it won't be so simple as "okay, reversed." It's their policy that its your duty to keep your PIN secure and secret. And that applies equally to both Credit and Debit cards.

    Don't get me wrong -- I do the same thing you do. Every online purchase, and many offline, I use my Credit Card and pay it off when the statement comes. But I do it for the added benefits: Points, extra warranty on everything I buy, etc.

    And because I don't always check my bank balances every day. My bank has refunded fraudulent debit card purchases for me twice, and the money was back in my account within an hour or so, but I worry about the time that I don't check it for a couple days and the money isn't there when I need it. Sure, the bank will fix it promptly, but that doesn't help if I have a cart full of groceries.

    Not to mention, the worst thing that could happen if your CC is fraudmeistered is that you can't charge anything until it's fixed. There's a lot more headache involved if your checking acct was just drained.

    But I wouldn't worry about fraud response from banks. Visa and Mastercard are literally making BILLIONS off Americans using the debit cards in place of cash. They don't want to scare you off.

  17. Re:Clever... by GIL_Dude · · Score: 4, Interesting

    I don't know enough about this to have a real opinion I guess, but I had sort of made the assumption that PINs worked like passwords in Linux and Windows - the server wouldn't know your password (PIN), but would know the HASH only. I guess these folks are saying that you can actually steal the PIN itself from a bank's server? I'd think it more likely that you could steal the hashes and then knowing that the PINs are generally 4 digit numbers, crack the hash. But if they directly store the PIN on their servers - that seems like a stupid idea.