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Visual Autopsy Of An ATM Card Skimmer

Bert64 writes "A chap at work was recently the victim of an ATM card skimmer which took his card details, cloned them and allowed the fraudster to take 550 pounds out of his account. Having tried to explain how the fraudsters can hide a camera and card reader around the ATM, he decided it would be easier to show one of them after a few drinks down the pub. He was a little surprised to find that the machine he chose had a card reader and camera in place. These were removed and analysed, we believe we have reclaimed about 800 pounds worth of kit. Result: Pictures."

35 of 880 comments (clear)

  1. Easy as Ebay by Xeed · · Score: 5, Interesting

    This is a growing trend. Along with other questionably legal items, you can find a card reader from Ebay for a fraction of what you can scam.

    What ever happened to "Stick 'em up??"

    --
    ...don't question it!!!
    1. Re:Easy as Ebay by confuse(issue) · · Score: 5, Insightful

      This is a growing trend. Along with other questionably legal items, you can find a card reader from Ebay for a fraction of what you can scam.

      What a good post 9-11 American citizen. You are right in calling it 'questionably' legal, unfortunately (for you) the answer to the question is yes it is legal. The government does not need to put Laws on everything that can do bad things, the laws should instead target bad things. DVD recorders should not be illegal...selling (or even just giving) a burned DVD of Star Wars should be illegal. Having a magnetic card reader is a great exercise in driver writing and or learning about it for POS apps (not piece of s&^t apps).

    2. Re:Easy as Ebay by rot26 · · Score: 5, Informative

      Not brain surgery but more sophisticated than a tape head connected to a serial port. Since the speed of the card over the head is expected to have a wide speed range, the reader has to have its own adaptive clock circuitry in it to decode the card, and THEN it's converted to rs-232 or CMOS level signals.

      --



      To ensure perfect aim, shoot first and call whatever you hit the target
    3. Re:Easy as Ebay by nfras · · Score: 5, Funny

      selling (or even just giving) a burned DVD of Star Wars should be illegal

      I agree, and if that DVD is Attack of the Clones or Phantom Menace, selling any DVD of it should be illegal.

      --
      You call me a pedant? I prefer the term "correct"
  2. Convenience or security... by SabrStryk · · Score: 5, Interesting

    This is the sort of thing that makes one wary about the convenience ATMs available in many cities; you'll save more than a surcharge by sticking to your own banking company's systems.

    On a side note, this is probably the most clever fraud I've seen in a long while. Great that these folks ripped out the innards of the scam device.

    --
    "A group of words expressing something other than their literal intention. Now that... is... irony!" - Bender
    1. Re:Convenience or security... by cmowire · · Score: 5, Insightful

      Well, not really.

      The skimmer is attached to any arbitrary machine without the cooperation of the ATM owner.

      So they can hit even your own bank's machines, if they so desire.

      This is the best ATM scam since... well... the last ATM scam, where they put a complete ATM machine in place. Except they got caught because they tried to stiff their ATM machine supplier.

    2. Re:Convenience or security... by Man+Eating+Duck · · Score: 5, Insightful

      Great that these folks ripped out the innards of the scam device.

      I'm not so sure about that. When something similar happened in Norway some time ago, the police was alerted and put the place under surveillance. The culprits were caught in the act of removing the devices.

      I think the people who removed it should have done the same, thus helping to catch the bastards. For all they knew, the place could already be under surveillance, giving THEM the blame for the crime...
      --
      Are you a grammar Nazi? I'm trying to improve my English; please correct my errors! :)
    3. Re:Convenience or security... by hoggoth · · Score: 5, Funny

      > the place could already be under surveillance, giving THEM the blame for the crime...

      That was the brilliant part of their scam. After removing the device and cleaning out all the bank accounts, they posted the whole thing to the Internet to create a cover story in case they were watched!

      --
      - For the complete works of Shakespeare: cat /dev/random (may take some time)
  3. shouldn't ATM machines be designed better? by Monty845 · · Score: 5, Interesting

    How hard would it be for someone to design an ATM machine that would make it more dificulty to conceal a card reader... or better yet one that made it impossible to insert your card if anything is attached... it would seem that with some common sense a designer good create some pretty good safe guards... or am I just missing something?

    1. Re:shouldn't ATM machines be designed better? by shird · · Score: 5, Insightful

      Even better would be the use of smartcards instead of current cards. The card simply has its own private key, the ATM machines/bank issue a challenge to the card and verify it against the known public key.

      The private key is never divulged yet the authenticity of the card is known. There is no way to scam the system other than steal the physical card and know what the pin is. These really need to be adopted soon.

      --
      I.O.U One Sig.
    2. Re:shouldn't ATM machines be designed better? by edp · · Score: 5, Interesting
      "You have a reader that reads everything on the card on the way in, so they get the public key."

      You don't send a key, you send a challenge that somebody with the private key can answer. There are challenge-response protocols that reveal zero knowledge to eavesdroppers. One of them works something like this: The card knows secret number X. The bank computer knows secret number X^2. (All arithmetic is done modulo a preselected large number with certain properties.) For one challenge, the card makes up a random number R and transmits (RX)^2. The bank flips a coin and asks the card for either RX or R^2. If the card really knows X, it can easily answer either question. In either case, the eavesdropper sees (RX)^2 and either RX or R^2, but, because of R, these are just random numbers -- if R is uniformally distributed (over the modular domain), then RX is also uniformally distributed; there is no information in it. An eavesdropper can learn what X^2 is, but the numbers are chosen so that it is (believed to be) extremely difficult to find X from X^2 (modulo the preselected number).

      Could somebody pretend to know X? Instead of sending RX, they could make up a number S and send S^2. Then if asked for RX, they could send S, and it would pass the check. Alternately, they could spoof in a way that allows them to correctly answer a request for R^2. However, it is as difficult to be able to answer both as it is to find X from X^2, because being able to answer both gives you the information needed to find X.

      Since a malicious person could spoof the test half the time, you repeat the test many times, say 30 for a one-in-a-billion chance of passing. Various caveats apply; search for "zero-knowledge proofs" for more details.

  4. hunh... by mekkab · · Score: 5, Insightful

    Was this the pass through kind? how was the camera attached? If I used one hand to cover the other hand while keying the PIN would that "thwart" it? Great pix but I could also use a little more commentary on what to watch out for.

    --
    In the future, I would want to not be isolated from my friends in the Space Station.
  5. This is how Skimmer works by maliabu · · Score: 5, Informative

    in case you're wondering:

    To accomplish this task, the thief places an electronic "skimmer" -- a card swipe device that reads the information on the card's magnetic strip -- on the ATM machine. Attached to the device, or placed discreetly elsewhere, is a small camera that captures the customer's PIN number when they enter it. The information is either collected by the device, or transmitted to a remote receiver. The thief then takes the codes and creates a counterfeit ATM card in order to empty the victim's bank account. Some skimmers can even capture the information and send it to the ATM at the same time. Since the machine works normally, the victim is unaware that they have just given a thief the key to their account. copied from here.

  6. Another interesting link: by amarodeeps · · Score: 5, Informative

    Saw this recently on memepool.com:

    http://www.utexas.edu/admin/utpd/atm.html

  7. Questionably Legal?? by PedanticSpellingTrol · · Score: 5, Insightful

    There are plenty of legitimate uses for magnetic stripe readers. Why, here at the University of South Carolina we just installed 3 $1,200 newspaper machines to limit the free newspaper program to students and faculty. I suppose you also think taxing blank CD-R and giving the proceeds to record companies is a good idea, because nobody would ever want to, say, back up data with them.

  8. Re:Makes you wonder by big_groo · · Score: 5, Informative
    This happened to my friends - luckily they were both out of town at the time, and *used* each of their bank cards. The bank gave them an automatic, free overdraft for the amount taken, but it took them about a week to get the money back. (TD Canada Trust, in case you were wondering)

    Banks are insured, y'know...but I have to wonder, if they weren't out of town (and able to prove it) would they have been so forthcoming?

  9. Re:Teller versus ATM by nomadic · · Score: 5, Funny

    I seriously wouldn't have an idea as to how to get money from a teller. You like show your ATM card or something?

  10. Here is what I do by savagedome · · Score: 5, Insightful

    Two things that I always ask my friends to do too.

    1. If you can, go to a supermarket or any store nearby that gives you cashback on your debit card. I can buy a pack of gum instead of paying stupid ATM fee AND get cashback with NO risk.

    2. Use your credit card to withdraw cash (but make sure that you pay it in the next billing cycle as cash withdrawls have very high APR) as the liability on credit cards is very low.

    1. Re:Here is what I do by NMerriam · · Score: 5, Interesting

      You are correct, cash advances on a credit card start accruing interest from the moment they are taken.

      It used to be that cash and purchases were treated the same, with basically a month interest-free loan as long as you paid your bill in full, but people could just pay one card with a cash advance from another, and be able to borrow money interest-free for as long as they stayed under the credit limit.

      --
      Recursive: Adj. See Recursive.
    2. Re:Here is what I do by mcheu · · Score: 5, Informative

      1. If you can, go to a supermarket or any store nearby that gives you cashback on your debit card. I can buy a pack of gum instead of paying stupid ATM fee AND get cashback with NO risk.

      You then end up paying a debit fee instead. Admittedly, it's lower than a 3rd party ATM fee, but it's still more expensive than going to an ATM owned by your home bank. Further, a lot of stores don't want to do this, because:

      a) In one small pissant purchase, you've cleared out the register of cash, which makes it difficult to give change to the next customer.

      b) The store has to pay a debit fee with each transaction. Whoopie, you've bought an 80cent pack of gum (on which only 20 cents profit at most), and are asking the guy to incur 50cents to 75cents worth of debit fees on his end. This is why some stores have a minimum purchase requirement to use debit.

      Also, your definition of "no risk" may not be the same as mine. There have been instances in Canada where some of these scammers have set up shop in a real shop. This is how it's done. The first time they swipe your card through, they swipe it through a slot near the real one, and claim the card was rejected or didn't read right. The second time, the card is swiped through the real one and a the real transaction happens. All the while, the "clerk" is watching you enter your PIN, and he's got a copy of your card now. Perhaps this is why the store doesn't have a problem with giving you a cash advance and being hit by the vendor debit fees on such a small item.

      I'm not saying that every instance where your card gets rejected is a scam, since it does happen that a card will be unreadable or rejected. I'm just saying there's still some risk involved.

      2. Use your credit card to withdraw cash (but make sure that you pay it in the next billing cycle as cash withdrawls have very high APR) as the liability on credit cards is very low.

      What, do you work for a credit card company? Unlike credit card purchases which hit you with interest only if you pay late, cash advances put interest on what you owe the instant you get the cash. You've already mentioned the high interest rate. Even if you pay quickly and on time, a credit card advance will have a nasty surprise attached.

    3. Re:Here is what I do by cyt0plas · · Score: 5, Informative

      1) Some merchants charge fees. Many don't as it's cheaper than credit.

      2) Some merchants offer cashback as an _incentive_ to get your business.

      3) If you clean out the register at a medium to large shop (small shops can be different), you've saved them the trouble. That's that much less cash for them to send out to be converted electronically. Also, it's less cash to send out on armored cars (depending on the size of the merchant).

      4) For the places that eat the $0.20 fedwire (Automated Clearing House) fees, it's typically less than the cost of a credit card, and they often don't have to pay a percentage. Buying nothing more than a pack of gum means they lose money, but they run that risk with a Credit Card too.

      --
      Contact Me (got tired of viruses emailing me).
  11. This only works with poorly designed ATMs by King_TJ · · Score: 5, Insightful

    My bank uses ATM machines that suck the card completely into the slot, with only a little bit of a metal guide plate exposed below the slot. (Typically, they have a label with arrows printed on it that's affixed just beneath the slot, as well.) If you tried to add some sort of reader device to the front of the ATM, covering the original slot and plate, it would be fairly obvious it didn't belong there. I'm sure it might fool *some* clueless people - but it would surely be ripped from the machine pretty quickly, as someone a little more clueful realized what was going on. (After all, it would obscure part of the label, making it obvious it wasn't part of the original ATM machine.)

    I have a feeling these card skimmers only work on specific models of ATMs (most likely, the little privately owned units you see in restaurants and gas stations, as opposed to actual bank-owned ATMs).

    1. Re:This only works with poorly designed ATMs by Giddeon · · Score: 5, Informative

      If you look at the site amarodeeps linked to in his comment, a cardstealer like the one shown would be able to steal swipes without too much difficulty. If you haven't seen the ATM before and don't know what it is supposed to look like, it will look quite natural. Most folks don't use the same ATM often enough to remember that the card guides on the sides weren't there last time.

  12. Questionably Legal??? by brunes69 · · Score: 5, Interesting

    There are a myrid of legal uses for stripe readers, including computer and home security, and making really cool copies of your bank cards*

    I have a friend who has a reader who does this.. he takes a plastic generic card with a cool photo on it, with a blank stripe, and copies your ATM stripe onto it. Fully functional, totally customized ATM card.

    You should see the looks he gets using his "superman" debit card.

  13. Alternative approach by archilocus · · Score: 5, Insightful

    Hate to be a party pooper but didn't you consider leaving it there and calling the cops ?

    If you had they might have been able to bust the individuals concerned and saved some innocents down the track a lot of grief.

    This way you got 800 quid's worth of stolen electronics, the thief wrote off some capital investment and a couple of thousand /.'ers got some pre-pubescent excitement. Wahooo.

    --

    Don't look back the lemmings are gaining on you

  14. prevention ... by another_twilight · · Score: 5, Insightful

    Most of the scams I have seen like this rely on recording your PIN based on what you type.

    The earliest versions simply had someone peering over your shoulder, or using a camera/telescope mounted up and behind and stealing the original.

    Get in the habit of 'embedding' your PIN within a larger number. Type this longer number too lightly to casue the pressure sensor to register and varying your pressure only on the 'key' digits. It won't fool decent resolution or close observation, but given the angles/lighting conditions and cheaper digitial cameas that are starting to show up, I am guessing that they are going to have trouble working out which hits are the real McCoy.

    Sure it relies on making your case more difficult than your neighbours, but to an extent that is all most locks and security devices do. Sure it's paranoid, and it does take some effort to set up, but muscle memory handles most of the work after a while and these days I only get a few false hits. YMMV

  15. Comment removed by account_deleted · · Score: 5, Insightful

    Comment removed based on user account deletion

  16. An idea by Anonymous Coward · · Score: 5, Interesting

    PIN numbers and the way they are entered have terrible security implications.

    Why can't you, say, have a 5 digit number and the ATM machine would ask you something like "What is your first, third and last number?" or "What is your first number plus your fifth number?"?

    Or how about you have to look through a keyhole to see the ATM monitor so nobody else can see it. Then, before it asks you to enter your details, it shows you the mapping of the keys on the keypad. So, if you have a 9 digit keypad, it would shuffle the numbers around you look into the keyhole and see:

    167
    482
    539

    Then you'd press the button that is in the right position for each number.

  17. Re:550 Pounds of money?!?!?!? by ShipIt · · Score: 5, Funny

    "The metric system is the tool of the devil! My car gets forty rods to the hogshead and that's the way I likes it." Abe Simpson

  18. Re:550 Pounds of money?!?!?!? by andynz · · Score: 5, Interesting
    Reminds me of one of my favourite Terry Pratchett quotes from Good Omens.

    Two farthings = One Ha'penny. Two ha'pennies = One Penny. Three pennies = A Thrupenny Bit. Two Thrupences = A Sixpence. Two Sixpences = One Shilling, or Bob. Two Bob = A Florin. One Florin and one Sixpence = Half a Crown. Four Half Crowns = Ten Bob Note. Two Ten Bob Notes = One Pound (or 240 pennies). One Pound and One Shilling = One Guinea.

    The British resisted decimalized currency for a long time because they thought it was too complicated.

  19. Re:Death of the PIN by Chester+K · · Score: 5, Insightful

    Could this be the death of the PIN? What's next - biometrics? Will this last only as long as it also cannot be spoofed?

    The advantage of a PIN over biometrics is that you can always change your PIN.

    Once someone finds out how to fool a biometric scanner into returning your biological data; you're hosed. You can't gouge your own eyes out and replace them with new ones.

    Any security system whose keys can't be changed is fatally flawed and should not be used -- ever.

    --

    NO CARRIER
  20. Re:Why use someone elses machine? by gordguide · · Score: 5, Interesting

    I know a few people who have delved into the 3rd-party ATM business. Note to non-Canadians: by law the bank has to let authorized independents access the Interac system. You go through quite a bit of verification; it's no way to scam anyone.

    The machines usually cost near $C 10K each, I suppose it's possible to buy one for half that used.

    The hard parts are:
    You need a bunch to really make it worthwhile; one machine is too much trouble for the piddly returns you get.
    They don't hold much cash; you have to refill often and it's going to be out-of-order (read: out of money) a lot if it's in a high-demand location. Try the 7-11 or a local bar.
    You have to somehow get a good location; usually this means giving a half-cut to the owner of the business you put it in. Indoors, locked at night, basically.
    You have to have the cash to keep it full; you need a float of a couple grand a machine, minimum. More is better, saves trips to fill it up, but you can start with that and fill it twice a day if you have to, till you start making money.
    After you piece off your retail partner (for the location) you can gross 75cents a transaction. If it's really competitive (as it seems to be where I am) you might end up giving the store a buck to keep the machine on their premises. At 100 transactions a day, that's 75 bucks or less. A hundred transactions requires a float near 10K per machine, or alternately thrice-a-day refills. Now you know why you need to have a dozen or so to start; one machine is just as much trouble as 10, so you may as well make a full-time job of it.
    Most of your machines won't average that many transactions. A hundred a week is apparently more common (they're everywhere; and each new one siphons off some of your traffic).
    The guys I know recently sold them off; the two of them had 8 altogether. Too competitive, the damn things are everywhere and many bar owners, gas stations and convenience stores just buy their own and keep the whole buck-and-a-half.
    They didn't make a killing; but if you were really into it and got up to 20 machines the income would be enough to support a full-time person. Hardly lucrative, but an enterprising individual can do OK.

  21. Re: Metric System by ArekRashan · · Score: 5, Interesting

    Actually, there is one rather good argument for using "English" measurement, at least when one is evaluating length.

    It is far, far easier to split measurements in the English scale into fourths and thirds. The math is much simpler to do in your head. Halves work just as well as in Metric (Decimal). Fifths work better under Metric, but English can do sixths.

    This is a simple consequence of their prime factors: 2*5=10 as opposed to 2*2*3=4*3=2*6=12.

    Feet to yards brings us to 2*2*3*3=36, which is strange but functional, and then we come to miles which is where it all falls apart. But we can't afford to replace all the signs with kilometers per hour. I'm not sure I'd trust American drivers to make the transition safely, either.

    Metric is a perfectly valid scheme to nearly all your measuring in. It is superior in several ways to English measurements, but there are valid reasons for not switching to it.

    I believe that most people don't want to swap our convoluted babylonian time system for decimal time, and I consider this an example differing in degree but not type from the English/Metric debate.

    Much Love,
    ArekRashan

  22. Re:Mirror in case of /. by Breakfast+Pants · · Score: 5, Funny

    So what? 64k canadian is what like 4 dollars?

    --

    --

    WHO ATE MY BREAKFAST PANTS?
  23. In Japan, ... by KlaymenDK · · Score: 5, Interesting

    ... they have some old ATM where the numbers are arranged in one loong row of large buttons ... completely impossible to hide what you're typing.

    But then, their new generation of ATM's have a touch-screen LCD to display the number pad -- and the digits are randomly rearranged between uses. Now that's secure (but not so ergonomic).