[HN Gopher] Is your chip card secure? Much depends on where you ...
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       Is your chip card secure? Much depends on where you bank
        
       Author : MindGods
       Score  : 127 points
       Date   : 2020-07-30 15:19 UTC (7 hours ago)
        
 (HTM) web link (krebsonsecurity.com)
 (TXT) w3m dump (krebsonsecurity.com)
        
       | bryanthompson wrote:
       | On this topic, if anyone can point me toward a US-based issuer
       | where I can open an account and get a card that supports credit
       | pin (not pin for cash advance on a credit card), I'll happily
       | venmo you a pizza or something. The issuers I have spoken to[1]
       | all tell me it is impossible to get such a card in the US, which
       | seems ridiculous.
       | 
       | [1]: https://wallethub.com/credit-cards/chip-and-pin/ I discussed
       | each of the cards noted here with the issuers, not one is
       | actually chip+pin credit.
        
         | neom wrote:
         | HSBC
        
         | techsupporter wrote:
         | * Spokane Teachers Federal Credit Union (Mastercard)
         | 
         | * Andrews FCU (Visa, one of the cards is also contactless) -
         | Must ask for the "international travel" card, the default is
         | chip-and-sign
         | 
         | * State Department FCU (Visa) - Must ask for the "international
         | travel" card, the default is chip-and-sign
         | 
         | * Target REDcard Mastercard (you have to get the normal store
         | card and hope to get swapped out to the Mastercard after a few
         | months/years/epochs; you can't get the Mastercard from the
         | first go)
        
           | nhf wrote:
           | Also the UNFCU credit cards.
        
         | PascLeRasc wrote:
         | I believe AmEx charge cards (Green, Gold, Platinum, possibly
         | others but these are the good ones) are all chip-and-pin. The
         | Blue Cash one on that website isn't.
        
           | ceejayoz wrote:
           | My Gold is definitely not chip-and-pin. Chip, yes. Pin, no.
        
         | lotsofpulp wrote:
         | I have inquired about this also and found no solution. If I use
         | my US based credit cards abroad where chip and pin is the norm,
         | I end up getting asked to sign a printed receipt.
         | 
         | I imagine the card networks just don't want to spend money to
         | change the infrastructure to support chip and pin because the
         | merchant pays for most the losses in the US?
        
           | bryanthompson wrote:
           | The liability shift in the US that affected most retailers
           | occurred in October 2015 -- basically, merchants are and have
           | been liable for fraud that occurs on swiped transactions. I'd
           | be curious to find out how the example presented by the
           | parent article could change this -- a valid-looking card that
           | only has swipe would definitely be taken by a merchant for
           | fraud, and if the card doesn't claim to be EMV-capable, it
           | seems like this would not be the merchant's fault. I would
           | think in 2020, however, a mag stripe only card would raise
           | red flags with humans at the counter, but gift cards are this
           | way, so perhaps they would just breeze right through.
        
             | lotsofpulp wrote:
             | Previous commenter and I were talking about chip and pin,
             | not just chip (aka EMV).
             | 
             | With EMV, someone can still use your card after they steal
             | it. With chip and pin, that is far more difficult. I don't
             | know if merchant off the hook even with just chip, I
             | presume the card networks kept some weasel language in
             | order to allow them to blame the merchant.
        
               | Symbiote wrote:
               | EMV is the standard for the debit/credit cards with
               | chips. It includes modes with PINs, signatures, and
               | neither, depending on the configuration of the card (i.e.
               | the bank) and the reader (i.e. the shop's
               | bank/intermediary).
               | 
               | https://en.wikipedia.org/wiki/EMV
        
           | xenospn wrote:
           | Had many arguments with cashiers in Europe who refused to let
           | me sign receipts and insisted I just enter a pin.
        
             | jacques_chester wrote:
             | I was (politely) threatened with arrest on a British
             | commuter train when the ticket inspector's credit card
             | device insisted on a PIN for an American credit card.
             | 
             | He literally didn't believe me when I said American cards
             | still ask for signatures. By luck there was an American
             | also riding in the cabin who piped up to verify my story
             | and I was allowed to pay when I reached my destination.
             | 
             | In Australia the same card works with contactless payment,
             | which never asks for a signature, up to AU$100. But as soon
             | as I go over that limit it's a card dip + signature.
        
             | bryanthompson wrote:
             | Also interesting how there are such specific requirements
             | at grocery stories. None of my US-based cards could be used
             | in several grocery stores in the Netherlands. When the
             | cashier looked at my cards, they immediately knew it was
             | because I didn't support whatever networks they expect.
        
               | thesimon wrote:
               | Maestro or VPay they expected, the european old-school
               | debit brands.
        
         | graton wrote:
         | First Tech Federal Credit Union offers Chip and Pin Mastercard.
         | 
         | https://www.firsttechfed.com/
         | 
         | https://www.firsttechfed.com/help/support/frequently-asked-q...
         | 
         | What is the difference between Chip and PIN versus Chip and
         | Signature? Chip and PIN is the most secure type of credit card
         | technology. Instead of a signature being used for identity
         | verification, it requires you to enter a four-digit Personal
         | Identification Number (PIN) that must correspond to information
         | contained in a computer chip embedded within the card. The Chip
         | and PIN authentication method has been a global standard across
         | Europe and Asia for many years which means using your card
         | while traveling overseas will be even more convenient.
         | Authorizing your transactions with a PIN is not new to debit
         | card transactions, but is a new way to authorize payments with
         | a credit card.
         | 
         | You may occasionally still be asked to sign for transactions
         | while using your chip card. Please be assured that while these
         | transactions are still secure, many merchants do not yet
         | support chip and PIN so you may encounter this from time to
         | time. First Tech is committed to ensuring chip and PIN
         | technology is available wherever merchants accept it. Learn
         | more at firsttechfed.com/mastercard.
        
           | techsupporter wrote:
           | Can confirm; I have First Tech and Spokane Teachers cards and
           | both are chip-and-PIN. If either of them would start offering
           | contactless on these cards, I'd have the perfect travel card.
        
         | astura wrote:
         | Last I knew Barclays is the only one who offers a credit PIN
         | that you can use at kiosks that only accept PINs. I also heard
         | Navy Federal was rolling it out but their services are a
         | military+family only
         | 
         | This article says there's a few, ymmv
         | 
         | https://www.creditcardinsider.com/blog/chip-and-pin-credit-c...
        
           | nhf wrote:
           | Barclays has chip and PIN capability, but it doesn't default
           | to PIN if signature is available - it will only trigger if
           | that's the only verification method, which is almost never
           | the case in the US.
           | 
           | (Source: I have one, and the only time I've entered the PIN
           | is at a British train ticket machine.)
        
       | Nursie wrote:
       | So this effectively lets you use chip data to recreate a magnetic
       | stripe, which passes validation when the banks don't check
       | against the right CVV.
       | 
       | Yeah, not great. OTOH I worked on an early EMV implementation
       | almost 20 years ago now, and it was obvious even then that mag
       | stripe was a huge security problem. I'm amazed we're _still_
       | talking about mag stripes and issuing cards with them in 2020.
       | 
       | They should have been retired over a decade ago.
        
         | humaniania wrote:
         | Maybe it would make sense to limit magstripe transactions to
         | $40 or let people decide their own limit.
        
           | LeifCarrotson wrote:
           | If a transaction doesn't get made because it was over $40,
           | that represents unacceptable missed profits, if some
           | unfortunate consumer gets their identity stolen[1], well,
           | they should have been more careful.
           | 
           | It would make sense to eliminate magstripes, to limit them to
           | $40, to let people decide their own limit, or any number of
           | other things - the trouble is that the incentives of the
           | businesses, banks, and credit card companies are more to make
           | every transaction a success and to blame the consumer when
           | they're too successful.
           | 
           | [1]: Yes, I recognize this is bad framing, the fault isn't
           | with the victim nor really with the perpetrator but the
           | incompetent designer of the lock.
        
             | pc86 wrote:
             | > the fault isn't with the victim nor really with the
             | perpetrator
             | 
             | The perpetrator isn't at fault?
        
               | Spivak wrote:
               | The perpetrator defrauded the bank, not you. The fault
               | for your account not showing the correct balance should
               | be on the bank.
        
               | asveikau wrote:
               | The perpetrator is in one sense to blame but this isn't a
               | good justification for lax security on the part of the
               | card issuers.
               | 
               | You wouldn't leave your door unlocked at night because
               | it's the burglar's responsibility to be a better citizen.
        
             | IshKebab wrote:
             | > If a transaction doesn't get made because it was over
             | $40, that represents unacceptable missed profit
             | 
             | Contactless already has transaction limits so clearly
             | payment method-specific transaction limits do not create
             | "unacceptable missed profit".
        
               | [deleted]
        
               | woodruffw wrote:
               | > Contactless already has transaction limits so clearly
               | payment method-specific transaction limits do not create
               | "unacceptable missed profit".
               | 
               | This isn't true with US payment cards, in my experience.
               | I've charged over $1000 on a credit card multiple times
               | while using contactless methods (both RFID and Apple Pay,
               | specifically). I was also able to do the same with my
               | (American) cards while in Europe.
        
               | Nursie wrote:
               | Apple/Android pay is generally unlimited here in the UK,
               | but using contactless cards is limited to PS40, blanket.
               | 
               | This is because contactless card payments have no
               | cardholder verification.
               | 
               | I am quite surprised if you can do that with your cards
               | in Europe as the limit is usually enforced on/by the
               | merchant, not the card.
        
               | Thlom wrote:
               | Can tap-to-pay with no verification up to 500NOK
               | (approximately $55), over that amount I have to type my
               | pin. No limit with pin as far as I can tell.
        
           | tomatocracy wrote:
           | I believe the way it works (in some European countries at
           | least - perhaps also the UK) is that if the retailer uses mag
           | stripe then effectively they bear the fraud risk, whereas
           | with chip and PIN the bank/card company does (not sure how
           | this works for card holders who are unable to use chip and
           | PIN due to disabilities, which is another reason mag stripes
           | haven't gone away completely). This seems like a reasonable
           | compromise to me.
        
             | Symbiote wrote:
             | I don't think disability requires using the magstripe. The
             | chip can mark what security is required, just like many
             | American cards are "Chip and Sign".
        
             | tialaramex wrote:
             | This is called "Liability shift" yes. Shift is imposed
             | where a retailer cannot/ does not accept chip cards rather
             | than where for whatever reason a chip card wasn't able to
             | be used. In the US shift was supposed to be imposed
             | everywhere left this summer, I expect COVID-19 is offered
             | as another reason to yet again delay, but retails stores
             | are already covered, it's mostly things like some
             | unattended 24 hour gasoline pumps that are still mag-stripe
             | in the US.
             | 
             | Also most (all?) card holders don't have a problem with the
             | chip, they may be unable to remember a PIN, or unable to
             | enter one, in which case the chip terminal requests a human
             | witness them signing something or asks the retailer to
             | accept just the chip. Americans using European terminals
             | may not have a PIN either, their chips tell the terminal
             | this user doesn't have a PIN, they may be asked to sign
             | something instead.
        
               | alistairSH wrote:
               | _Americans using European terminals may not have a PIN
               | either, their chips tell the terminal this user doesn 't
               | have a PIN, they may be asked to sign something instead._
               | 
               | Or, in the case of unmonitored "kiosks", the American is
               | just left with a failed transaction. This was my
               | experience with train ticket terminals in Italy and
               | unattended petrol stations in the UK. Fortunately, in
               | both cases, my secondary card has a PIN enabled. It was
               | irritating that my primary card didn't offer a PIN, so I
               | cancelled it upon my return to the US.
               | 
               | Edit - this was 5 years ago, may have changed since, not
               | sure as I changed cards to one that explicitly offered
               | chip/pin at the time.
        
           | aerostable_slug wrote:
           | This kind of thing is done today with EMV cards to determine
           | whether the customer needs to enter a PIN or not. Under a
           | threshold: swipe and go because the level of possible fraud
           | is acceptable vs. the impact on the customer. Above a
           | threshold, PIN required.
        
             | lotsofpulp wrote:
             | Not in the US.
        
           | kevin_thibedeau wrote:
           | Won't work for gas stations which are the last holdouts.
        
             | joncrane wrote:
             | You sure? Most of the gas stations I use to fill up have me
             | leave the card in for the chip reader, as opposed to slide
             | it in and out quickly as before.
        
               | Alupis wrote:
               | Stumbled across my first one of these the other day.
               | 
               | It's not obvious at all that you should leave it in -
               | particularly when accustomed to the ubiquitous slide-in-
               | and-out-fast kind.
               | 
               | This one tried to lock my card in, but when I reflexively
               | yanked on it to pull it out, somehow it lost contact with
               | the chip or something. What followed was a stuck card in
               | this machine, and the machine stuck on "verifying"... no
               | cancel buttons worked either. Eventually, after a long
               | and disconcerting minute had passed, it finally released
               | my card and told me to go inside for payment.
               | 
               | Definitely not user friendly in the slightest... and just
               | an awful way to start your morning on your way to work.
        
               | 0xffff2 wrote:
               | I travel a decent amount in the Western US, mostly in
               | California and Oregon. I have never once encountered
               | this.
        
             | SEJeff wrote:
             | Until EVs are more mainstream I guess, but that won't
             | probably be for another 5-10 years.
        
               | Thlom wrote:
               | Haha. A bit unrelated, not sure how it works in the rest
               | of the world, but inNorway EV charging stations doesn't
               | even have a card reader, you have to sign up with an app
               | and register your card there. And each charging company
               | has their own app. Absolutely bonkers. You can get a chip
               | for your key chain and tie it to all your apps so you can
               | read that at the charging station, but still.
        
             | SAI_Peregrinus wrote:
             | The chain "Speedway" has chip card readers at their pumps,
             | at least in my region (western NY).
        
               | kevin_thibedeau wrote:
               | The New York Speedways are all conversions from Mobil
               | stations and they just upgraded their pumps. Few other
               | stations are supporting chip cards.
        
             | lsllc wrote:
             | There's no reason why contactless EMV should not be
             | required even at a gas station (not needing a limit).
        
               | aerostable_slug wrote:
               | Gas pump readers are very expensive. The solution for the
               | wise customer is to go inside and use the POS terminal at
               | the counter if possible.
               | 
               | Old school gas station attack: many gas stations queue
               | and forward transactions for reconciliation in batches,
               | waiting to do so when they don't have connectivity.
               | People have taken advantage of this fact by climbing up
               | on the roof of stations with satellite connections for
               | their POS terminals, tin-foiling them or otherwise
               | blocking their transmission, then buying a bunch of gas
               | with a stolen credit card. Head down to the next gas
               | station, lather rinse repeat, and by the time things get
               | figured out you've got maybe a hundred gallons of gas and
               | a bunch of candy bars you can trade for meth (this is not
               | a Bond Villain-level crime).
        
               | tialaramex wrote:
               | > The solution for the wise customer is to go inside and
               | use the POS terminal at the counter if possible.
               | 
               | That's irrelevant to this attack. Bad guys aren't obliged
               | to use that terminal, and they're the ones relying on
               | access to a mag-stripe reader.
               | 
               | However for that "old school" attack EMV could help if it
               | was deployed. Because EMV cards have state, they can have
               | arbitrary rules about how often they're willing to
               | perform offline transactions and how much value for. So
               | e.g. a card can decide it won't do more than five offline
               | transactions or more than $100 of transactions without
               | going online.
        
         | jgalt212 wrote:
         | Mag stripes via fingerprinting of the actual stripe, can make
         | make them more secure than EMV or contactless.
         | 
         |  _Both the standard card data and the underlying magnetic
         | fingerprint of the card is read, all in a single swipe._ [1]
         | 
         | [1] https://www.magtek.com/product/magnesafe-intellihead
        
           | Nursie wrote:
           | That's still not really "more secure" than EMV, which
           | includes active security measures like PIN validation
           | capabilities, various active anti-fraud measures like offline
           | velocity checks, transaction amounts encoded in cryptographic
           | tokens, and which can in theory be remotely disabled etc.
           | 
           | I guess it makes it "more /just as able to be authenticated
           | as a genuine card" though.
        
             | jgalt212 wrote:
             | Yes, I hear you. It would then come down to what's easier
             | to do correctly, authenticate an EMV transaction or read
             | and validate the fingerprint of a card's mag stripe.
             | 
             | To the best of my knowledge, I don't think anyone has been
             | able to replicate a mag stripe's fingerprint on another
             | card's mag stripe. However, this security measure has
             | probably seen a few orders of magnitude less adversaries
             | than EMV and RFID have.
        
         | Shivetya wrote:
         | First I would love to find a way to find which banks or
         | processors are vulnerable.
         | 
         | Second is, is there a way to gain the safety of the chip and
         | pin with online purchases. Currently I obscure my CC info by
         | using PayPal where available and when in the real world I live
         | by Apple pay. If I could disable access to my card by stripe
         | for real world where Apple pay is not usable I would.
        
           | brendoelfrendo wrote:
           | Hm, that makes me wonder; is it possible to demagnetize or
           | scramble the data on the mag stripe without harming the chip?
           | I'm not sure how sensitive the chips are to magnetic
           | interference, but if you can pull it off, you can make your
           | own chip-only cards.
        
             | andrewnicolalde wrote:
             | There certainly is. I have done this with a non-payment
             | card. All you need is a magstripe reader/writer. A few tens
             | of passes of writing random data to the magstripe should do
             | the trick.
             | 
             | Not sure how this would impact the usability of your card
             | though, in case you do end up relying on the magstripe.
        
           | grishka wrote:
           | > Second is, is there a way to gain the safety of the chip
           | and pin with online purchases.
           | 
           | Yes, there's this 2FA thing where you're redirected to your
           | bank's website and you have to enter the code they send to
           | your phone. I've had this for ages and I'm surprised there
           | are still places where it's not mainstream.
           | 
           | Magstripes tho? I remember using mine when I visited the US
           | in 2016 and that's about the only time when I used it. It was
           | weird too, because most terminals had the chip slot but
           | cashiers insisted that you swipe. The most bizarre part is
           | that sometimes the transaction went through with _just the
           | swipe_ -- no PIN, nothing.
        
           | Nursie wrote:
           | >Second is, is there a way to gain the safety of the chip and
           | pin with online purchases.
           | 
           | In the UK we have had "Verified by Visa" and "Mastercard 3D
           | Secure" for many/most online transactions for a long time (12
           | years?)
           | 
           | It's effectively a form of 2FA, the transaction flow diverts
           | to a bank portal where you authorise the transaction with a
           | password, or a selection of digits from a passcode. This
           | never goes near retailer systems.
           | 
           | It's not the same level.of assurance as EMV, but it is
           | something, and any transactions that don't go via that system
           | are more likely to be declined or flagged as fraud.
        
             | 0xffff2 wrote:
             | How do those work over there? We have both in the US as
             | well, but I've always refused to use them because signing
             | up for either seems to transfer a significant chunk of the
             | liability for fraudulent transactions away from the bank
             | and on to the consumer.
        
               | te_chris wrote:
               | You don't sign up to anything, it's with the issuing bank
               | or provider.
        
       | im3w1l wrote:
       | What if you sidestepped all the chip cleverness and just put
       | cameras to capture the name, CC number, expiration and 3 digits?
       | You'd still need a billing address I guess, but you might be able
       | to get that by looking up the name and disambiguating using the
       | location of the terminal.
        
         | Nextgrid wrote:
         | A lot of merchants are starting to use 3D Secure now which is
         | essentially two-factor authentication.
        
           | Nursie wrote:
           | Starting to?
           | 
           | It's been pretty standard for over ten years... (I'm in the
           | UK, I have no idea how our market compares to yours)
        
             | untog wrote:
             | I used to live in the UK (and still visit often) but now
             | live in the US. You'd be _amazed_ how far behind US banking
             | is, even compared to the UK ten years ago.
        
             | Nextgrid wrote:
             | I said "starting" to include the US which I expect to be
             | still far behind. I agree that in the UK it's been standard
             | and in fact EU regulations now make this mandatory anyway.
        
             | tricolon wrote:
             | I'm in the US and have never heard of it.
        
             | kergonath wrote:
             | It's common in Europe (I think it's even mandatory now,
             | though not necessarily for each transaction).
        
             | ceejayoz wrote:
             | > It's been pretty standard for over ten years.
             | 
             | It's unheard of in the US.
        
         | oneplane wrote:
         | Depends on where you bank I suppose. Also depends on where you
         | credit.
         | 
         | I can't use my bank card without mutual validation, same with
         | my credit card. Even if you do it manually we still get a
         | challenge-response that you use a hardware device or an app
         | for.
        
         | ceejayoz wrote:
         | > What if you sidestepped all the chip cleverness and just put
         | cameras to capture the name, CC number, expiration and 3
         | digits?
         | 
         | Apple Cards have just the name on them, which is a nice step in
         | the right direction. (No contactless, though, which is weird.)
        
           | WorldMaker wrote:
           | Apple Cards also have the nice feature that the entire mag-
           | stripe CC number is virtual and different/distinct from the
           | number used by contactless/Apple Pay, the number used by the
           | EMV, _and_ the number given by the App for cases where
           | something requests you manually type in a CC number. Most of
           | those numbers can be changed in the App when needed. So even
           | in the cases where someone skims or leaks an Apple Card CC
           | number you typically have more protection than an average
           | card.
        
           | Nursie wrote:
           | Why would you need it, you've got an iPhone right?
           | 
           | (semi serious here - I'm sure they want you to use Apple Pay)
        
             | frogblast wrote:
             | A contactless card just proves physical possession of the
             | card. An Apple Pay payment means that a password or
             | biometric authentication was performed, AND possession of
             | the device, which raises the barrier to fraud. So there is
             | a good reason to wanting to discourage the use of the card
             | when possible.
        
             | SomeHacker44 wrote:
             | There is a little thing called COVID. All my main payment
             | cards are contactless now. I am not an Apple card customer.
        
               | Nursie wrote:
               | Sure, but if you have an Apple card you're going to have
               | an Apple phone, most probably, and that can do the
               | contactless bit for you. Not sure if apple cards and
               | android phones work, but android-pay is the other option
               | for most cards.
               | 
               | Both are more secure than using the card directly with
               | contactless - you have verified to your phone that it is
               | you using it, by logging in with face ID, touch ID,
               | passcode, PIN, whatever. It's a form of cardholder
               | verification that is missing when you use the card.
               | 
               | That was my (slightly snarky) point - you don't need
               | contactless on the card when you have a smart device that
               | does it better.
        
               | dhosek wrote:
               | I'm not an Apple card customer either, but I use Apple
               | pay with my cards usually on my watch, although once in a
               | while it doesn't work at a terminal and I have to pull
               | out my phone (which is annoying since facial recognition
               | doesn't work with a mask on). I understand similar things
               | exist for Android.
        
             | WorldMaker wrote:
             | If you want more convenience in your contactless payments,
             | Apple suggest that you get a more recent Apple Watch.
             | 
             | (Also semi-serious.)
        
           | dhosek wrote:
           | My credit union cards still have the old-style credit card
           | number on the front (but no raised digits for the ker-chunk
           | machine). My Chase card has the numbers in small type on the
           | back in a non-contrasty color. It's not possible to read in
           | non-ideal lighting conditions.
        
             | dhosek wrote:
             | But I rarely take either card out of my wallet. I use Apple
             | Pay almost everywhere.
        
             | Scoundreller wrote:
             | What I like about those is that you can stack more cards in
             | the same space.
             | 
             | And the embossed cards tend to have their ink rub off
             | anyway.
        
         | gnopgnip wrote:
         | Vendors get much less protection when doing a card not present
         | transaction. They also usually pay higher fees. There are also
         | cases where an additional layer of security is used, visa
         | secure
        
         | 8K832d7tNmiQ wrote:
         | Another method would be a standardised QR code so that you can
         | make a transaction from your app by scanning the qr code.
         | 
         | I don't know about other countries, but this is basically the
         | premise of QRIS Technology [0] used in Indonesia, basically to
         | put an end on competing in QR-based payment method.
         | 
         | [0]: https://www.bi.go.id/QRIS/Contents/Default.aspx
        
           | gruez wrote:
           | The one thing I like about the credit card system (as opposed
           | to "app" pay system) is that the usability is so much better.
           | You don't have to worry about your phone being smashed or
           | running out of battery. It's also less work than a phone, all
           | you need to do is wave your card in front of a reader. No
           | need to get out your phone, unlock it, open the app, wave
           | around your camera so it scans, and finally confirming the
           | payment. Not having to install a potentially privacy invading
           | app is also a plus.
        
           | ravenstine wrote:
           | Wouldn't work in a lot of places where there's no LTE
           | reception, though that will probably change with things like
           | 5G and Starlink.
           | 
           | I also wouldn't want my ability to pay to be tied to my
           | phone. Not only do I want to be able to pay for things even
           | when my phone is dead, but it just seems like it would add
           | yet another vector of attack to steal my money.
        
       | castratikron wrote:
       | Guessing Visa can "fix" this problem in the same way they fix the
       | fallback to magstripe: make the vendor pay a fee for
       | noncompliance.
       | 
       | https://www.cardfellow.com/blog/emv-fallback-fees-definition...
        
         | csommers wrote:
         | That's exactly how it should be: party at fault gets charged.
        
       | afrcnc wrote:
       | Can we link to the actual research instead of this people-doxing
       | clown's article?
       | 
       | Source: https://geminiadvisory.io/cybercriminals-deploy-emv-
       | bypass-c...
        
       | samblogs wrote:
       | Does anyone have a good detailed article on the crypto behind
       | iCVV/dynamic CVV? This article summarizes how it works, but I
       | haven't found a good detailed article after much googling
        
         | bob1029 wrote:
         | I found this from a public FirstData document:
         | 
         | "Codes written on the track with equivalent data stored on the
         | chip to prevent fraud. All chip cards are issued with the card
         | security code on the track data stored on the magnetic stripe
         | and chip card security code stored on the chip. Calculated with
         | the same DES key but with a '999' service code"
         | 
         | https://www.firstdata.com/downloads/marketing-merchant/EMV-A...
        
       | the_mitsuhiko wrote:
       | I will never understand why magstripe is still used in the US.
       | Even after EMV became "mandatory" there are still magstripe
       | transactions happening and when you are presented sith a chip
       | reader it's slow and awkward. Why is it such an inferior
       | experience compared to Europe?
        
         | swimfar wrote:
         | Because many consumers don't see chip and pin as an upgrade
         | (though contactless is nice). So it depends on the banks to
         | decide whether it's worth it. With debit cards, the extra
         | security is valuable. But with credit cards it isn't really too
         | important to me because I can just reverse fraudulant charges.
         | 
         | As for the experience of using each, it seems to depend a lot
         | on the machines. I did not like using chip and pin in Europe
         | because it seemed to take longer and required more
         | interactions. With the magstrip I pull the card out, swipe it,
         | put it away. I'm never waiting for anything. Sometimes I'd have
         | to swipe it twice, but that didn't happen too often to me. But
         | it seems like different people have very different experiences
         | with these things.
         | 
         | edit: this mostly applies to credit cards, which are much more
         | common in the US than in Europe. But the lack of significant
         | benefit for credit cards to use this technology could have
         | resulted in momentum that slowed the adoptation of it for debit
         | cards.
        
         | jermaustin1 wrote:
         | What is crazier still, is I wasn't even sent a chip & pin from
         | my bank until just last year. At least they did everything all
         | at once, chip and contactless. But I'm still waiting for
         | Capital One to send me a contactless card (its my preferred
         | card to use internationally where contactless seems to be the
         | standard).
        
           | tialaramex wrote:
           | If you have a (modern, smart) phone you can teach the phone
           | this Capital One card and it'll "be" that card contactlessly
           | when you travel, one less thing to carry.
           | 
           | I deliberately own (special ordered from my bank) a card that
           | has no contactless, and it's also the card my phone "is" so
           | all contactless transactions with that card are through the
           | phone, the bank never issued a contactless card so it's
           | literally impossible that the card itself was used for a
           | contactless transaction.
           | 
           | Using the phone this way allows me to walk around the
           | supermarket, scanning product codes with the phone, then walk
           | to the checkout, scan the "I'm done" code and hold the phone
           | near the contactless checkout as payment. No human
           | interaction, very little touching stuff, only need the phone
           | which I'd carry anyway, no cards or cash.
        
             | jermaustin1 wrote:
             | I actually had trouble the a year ago when traveling in the
             | UK (I miss travelling), I was using my capital one through
             | apple pay, but it would get declined constantly and shut
             | off because the UK doesn't pass the CVV into the
             | transaction. I never found a clear pattern for when fraud
             | detection would occur, but one app that caused it
             | constantly was Deliveroo.
        
         | llsf wrote:
         | I was wondering too. But here in US the equation is bit
         | different. The CC networks have already backed the cost of
         | magstripe fraud in the business model. They convinced Americans
         | to pay an elevated fee to balance the inevitable fraud induced
         | by magstripe. Now, with EMV in theory the fees should drop as
         | there is less fraud than with magstripe. Having magstripe
         | around is a way to justify the fees. That is my understanding
         | that it would be difficult now to explain to Americans that
         | they paid elevated fees for so long to pay for fraud that was
         | no fault on their own.
        
         | abrowne wrote:
         | My understanding for part of it is that magstip readers were
         | much more common in the US, and businesses (a) didn't want to
         | pay to upgrade all their terminals and (b) don't want to turn
         | away a purchase because a customer doesn't have a chip or the
         | chip isn't working.
        
           | lsllc wrote:
           | That may have been the case, but pretty much everywhere I go
           | stores have newer EMV capable terminals (e.g Ingenico etc).
           | The only place I really use mag swipe now is a gas station
           | pump (who have no excuse not to switch to contactless EMV).
           | 
           | You'd think with COVID-19, there'd be a rush to move to
           | contactless payments.
        
             | blahyawnblah wrote:
             | Lots of gas stations do use the chip, but it's the same
             | process of inserting the card.
        
               | jackson1442 wrote:
               | Never been to a pump that uses chip personally, unless
               | you pay inside. I've seen ~5 with a contactless tap
               | point, but only got about 2 of them to work.
               | 
               | This is in Texas, for reference.
        
             | eli wrote:
             | A lot of people think COVID-19 is indeed the thing that
             | will tip this into the mainstream default:
             | https://www.bankingdive.com/news/will-covid-19-push-
             | contactl...
        
               | lsllc wrote:
               | I hope so. On a related note, I don't know if this is
               | just me, but I literally have not used cash since March
               | (although I keep hearing about a "coin shortage", perhaps
               | this is people just not using coin anymore).
        
               | eli wrote:
               | Same. And yes, that's my understanding plus other
               | factors: low usage of mass transit ticket machines and
               | laundromats. Plus few people rolling coins and bringing
               | them into a bank right now.
        
             | penagwin wrote:
             | Yeah I actually choose gas stations that support contact
             | less payments. No card contact + one disposable glove is
             | the way to go.
             | 
             | Overkill.. Maybe? But it costs me nothing so I'll take the
             | peice of mind.
        
               | bluntfang wrote:
               | I'm really not trying to be rude here, but a disposable
               | plastic glove isn't a "cost nothing" scenario. Plastic
               | pollution is bad. Climate change is real. Trash islands
               | are real. Microplastics in the entire food chain is real.
               | I admire your dedication to stay safe, and don't want you
               | to stop feeling safe, but we must all begin to accept
               | what we're doing to the environment.
        
           | ascorbic wrote:
           | Magstripe readers were ubiquitous in the UK 15 years ago. The
           | banks started issuing chip and PIN cards and terminals, then
           | did the liability shift a couple of years later. That shift
           | is what's needed to make retailers switch, and is what still
           | hasn't happened in the US.
        
       | Deathmax wrote:
       | A Monzo engineer describes nonconformance with specs which might
       | lead some card issuers to be more liberal with what they accept:
       | https://twitter.com/erincandescent/status/128153445694436147...
        
         | Fiveplus wrote:
         | That was interesting, thanks for sharing it here.
        
       | tzs wrote:
       | OK, so if I grasp this, the problem is that an EMV skimmer gets
       | the card number and an iCVV. The bad guys make a stripe card with
       | that number and the iCVV.
       | 
       | That should not work because banks are supposed to look for the
       | iCVV only on dipped transactions, and look for the CVV on swiped
       | transactions (and the CSC for online/telephone transactions).
       | 
       | Some banks apparently left out the logic of matching the type of
       | code to the transaction method, and so using iCVV in place of CVV
       | works for them.
       | 
       | Even if all banks got this right, though, it seems to me you
       | could still get fraud. The CVV is only three digits. Once you've
       | got the card number just make a stripe card and guess the CVV. If
       | it fails, try another CVV. As long as you don't do too many
       | guesses too close together and cause the bank to lock out the
       | card, you should eventually find the right CVV.
       | 
       | Even if the bank is very trigger happy on fraud lockouts, if your
       | skimmers got several thousand card numbers you are going to have
       | many CVV guesses turn out to be right the first time.
       | 
       | Instead of the stripe on cards that have both EMV and stripe
       | being just a copy of the same card that is in the EMV side of
       | things, shouldn't they be separate? The issuing bank should issue
       | two logical cards for the underlying account, with one being EMV
       | only and one being stripe/online only.
        
         | kergonath wrote:
         | I would hope that a card would be flagged as suspicious before
         | a hundred tries. They'd still could get some transactions
         | through, but that would cut the success rate by a couple of
         | orders of magnitude compared to just hoping that the bank won't
         | check.
         | 
         | What really needs to be done is letting go of the magnetic
         | stripe.
        
       | lmilcin wrote:
       | Hi. I have worked for one of the acquirers (card acceptors) for
       | couple of years, designing and implementing credit card terminals
       | and security infrastructure. I was also security officer.
       | 
       | Basically, credit cards can be very secure. But it also costs.
       | Banks do simple cost/benefit decisions and may in many cases
       | significantly lag behind in technology for various reasons. They
       | get away with this because consumers have absolutely no idea how
       | cards differ and what the options are.
        
         | kergonath wrote:
         | My experience has been that all the banks that gave me cards
         | were diligent in verifying suspicious transactions, often
         | erring on the side of caution and asking for confirmation.
         | Also, they don't tend to argue much before refunding an illegal
         | transaction.
         | 
         | So, from my point of view, it could certainly be improved
         | (along the lines of what Apple Pay is doing with tokenisation:
         | confidentiality is an issue), but there is no real reason to
         | complain.
         | 
         | As long as fraudulent transactions are rare enough that the
         | banks don't drag their feet, it's fine.
        
         | throwaway_pdp09 wrote:
         | > because consumers have absolutely no idea how cards differ
         | and what the options are
         | 
         | Well if there's a time and a place to educate people, it's here
         | and now. Your knowledge would be appreciated, TIA
        
         | rblatz wrote:
         | But also banks take on all the liability for misuse. Customers
         | aren't liable for fraudulent charges, that's why America has
         | lagged behind Europe on rolling out chip cards, customers don't
         | demand it because they don't pay the price for card fraud.
        
           | hocuspocus wrote:
           | European customers aren't liable for fraudulent charges
           | either, I don't really understand your logic here.
           | 
           | Everyone pays the price of fraud and it's probably one major
           | reason that explains high interchange fees in the US.
        
             | swimfar wrote:
             | Early on the customers were completely liable because the
             | banks claimed that the only wait a fradulent charge could
             | be made is if the customer "allowed" their PIN to get
             | stolen. Eventaully they changed this and made it more
             | customer friendly.
        
             | C1sc0cat wrote:
             | IN Europe the liability shifted to the non complying
             | partner - which helped takeup.
        
               | tadfisher wrote:
               | Already the same in the US once EMV was rolled out.
        
             | tialaramex wrote:
             | No, US interchange fees pay for "reward" cards. You charge
             | everybody 5% extra, you give Karen 5% cashback, she thinks
             | you're "rewarding" her and everybody else get screwed, the
             | payment network keeps the difference.
             | 
             | The EU caps the interchange fee, does that mean the
             | networks exit the business because they can't make money?
             | No. Does it mean they've eliminated fraud? No. But it does
             | mean they can't pay Karen 5% "reward" so they don't. There
             | aren't any cards like that in Europe. For everybody else it
             | makes the system cheaper.
        
           | llsf wrote:
           | That is the thing that it took me a while to understand once
           | arriving in US from Europe. In Europe I did not care the
           | least if someone managed to hack my credit card. The bank is
           | liable. The bank is responsible to make as secure as
           | possible. That is probably why we had credit card with chip &
           | pin since the 80's. Banks had incentive to reduce the fraud
           | as they could not easily pass it to the customers. But when I
           | arrived here in US, I heard all those horror stories with
           | fraudulent charges (and it happened to me too) and why I
           | should take it seriously. And why I should protect my CC
           | details ?!? (like my US social security number... but that is
           | for another thread :) Coming from a country where CC used
           | chip & pin for more than 30 years, and only have US embracing
           | it (but only half-way) in recent years, is bizarre.
        
             | kergonath wrote:
             | Coming from a country where your address and social
             | security number are basically publicly-available
             | information (so of course neither are used for anything
             | sensitive), it took me some time to understand the fuss
             | Americans tend to make about SSNs...
        
           | Wowfunhappy wrote:
           | Right, and so the trade-off seems completely reasonable to
           | me.
           | 
           | If the bank has calculated that extra fraud costs less than
           | the price mitigating it with additional security measures,
           | and it is the one bearing the cost either way, then power to
           | them!
        
             | techsupporter wrote:
             | I'm not sure I understand this. Fraud, and cleaning up
             | after it, is not free of cost. If anything, fraud is more
             | insidious because it costs the one thing I can't replace,
             | which is time.
             | 
             | Even for me--someone who has multiple payment cards,
             | primarily uses credit (instead of debit), a healthy savings
             | account, and a flexible job--cleaning up from a stolen
             | credit card number takes two or three hours at a minimum.
             | For someone who does not have those things, _particularly_
             | for people who primarily use debit cards[0], the impact is
             | far worse.
             | 
             | If we swapped our cards to simply require a PIN that's
             | validated by the chip on the card (so that in-person
             | charges without the proper PIN cannot complete, even if the
             | card is shimmed), that removes the bulk of in-person fraud
             | attempts. But US banks are, largely, so fearful of
             | customers switching away from them at even the slightest
             | provocation, we don't get PINs. So I'm forced to ask what
             | other "basic" measures (like 3D Secure for online
             | transactions) we lack.
             | 
             | 0 - I don't want to hear the rebuttal that "well, people
             | should just use credit cards." There are a hundred
             | different reasons why people don't use credit cards--don't
             | qualify for one, have an objection to debt, past bad
             | experience, and so on--and we cannot write off people who
             | "only" use debit from security measures.
        
               | kergonath wrote:
               | Overall, debit cards make much more sense than credit.
               | Their purpose is just to move money across accounts, not
               | to entice you to overspend and then prey on you if you
               | forget the magic dance, or datamine your spending
               | patterns. There is no intrinsic reason for credit cards
               | to be safer.
        
             | VBprogrammer wrote:
             | This completely ignores the amount of worry and frustration
             | which an ordinary person has to go through to get back to
             | the point that only the bank are out of pocket. It's not
             | trivial by any means.
             | 
             | You could also make an argument that by continuing to allow
             | this fraud to happen we're funding all kinds of nasty
             | people. I'm not convinced the argument holds water since
             | bad guys are often faster to move than the banks but it's
             | worth noting.
        
               | kergonath wrote:
               | It's a systemic issue. In jurisdictions where banks
               | cannot shift the risk to the customers, they tend to be
               | more effective.
               | 
               | In the few European countries I know, banks are very pro-
               | active about card fraud and refund without asking
               | questions if fraud happens anyway.
               | 
               | Nasty people will get funded anyway, but reducing fraud
               | also reduces their income. The main drawback is that
               | people have to use their PIN (and even that is getting
               | rare thanks to contactless cards).
        
         | lsllc wrote:
         | I think the bigger issue is not the terminals themselves, but
         | the software behind it that's designed to process the payment
         | from the track data.
         | 
         | Contactless magstripe (MSD) is a workaround that allows for a
         | contactless payment, but really is just sending the same
         | (insecure) track data through the backend software. Contactless
         | EMV is the right way, but requires more sophisticated software.
        
         | cosmie wrote:
         | > They get away with this because consumers have absolutely no
         | idea how cards differ and what the options are.
         | 
         | Do you have any tips/resources for how an interested consumer
         | can become more informed (whether for personal or small
         | business accounts)?
         | 
         | Would you be able to get this type of information you'd be able
         | to get to through contacting support, if you know the right way
         | to ask? Or would it be considered too sensitive for the bank to
         | give out implementation details that easily?
        
         | whitepoplar wrote:
         | Can you give any recommendations on banks that really get it
         | right? How about the inverse?
        
         | dddddaviddddd wrote:
         | What features make a secure credit card and how can a consumer
         | verify their presence?
        
         | specialist wrote:
         | How can noobs like me assess how good any given POS is?
         | 
         | Is there a rating system?
         | 
         | Any way to inspect transactions to see the whatnots?
         | 
         | Knowing nothing, I've been doing as much as possible using
         | Apple Pay, because IIRC they do some kind of token exchange, vs
         | sending my digits across the wire.
        
       | donarb wrote:
       | I use my chipped card frequently when going to the grocery store.
       | Pretty much 20% of the time, it won't read the chip, reporting
       | "Chip Malfunction". Even wiping any sort of gunk off the chip
       | contacts doesn't fix it. So you have to go through 3 failed read
       | cycles before it will let you use the mag strip on the back.
       | 
       | Going back to the store a few days later and the same machine
       | will work, I wonder how often the machine's readers are cleaned.
        
         | jack_h wrote:
         | I've had problems with the chips themselves. I had a card whose
         | chip worked perfectly for maybe a year or more before I lost
         | it. The replacement chip worked for about a week then I'd get a
         | chip error every time and everywhere. So I got another
         | replacement which didn't work out of the envelope. So I got a
         | third replacement and it worked exactly one time before
         | breaking.
         | 
         | At this point I've just given up and insert the card three
         | times before being forced to use the mag strip. I don't even
         | know what else to do...
        
         | meragrin_ wrote:
         | A cashier gave me a tip once. Try pushing on the face of the
         | card so the chip end is levered up against the machine tighter.
         | It seems like there is something wrong with the contacts in the
         | reader and do not make appropriate contact with the chip.
        
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