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USA EMV cards: Availability, Q&A (Chip & PIN -or- Chip & Signature) [2012-2015]

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Old Sep 20, 2013, 11:40 am
FlyerTalk Forums Expert How-Tos and Guides
Last edit by: philemer
Posts from 1/1/16 onward can be found here: http://www.flyertalk.com/forum/credit-card-programs/1739359-2016-onward-usa-emv-cards-availability-q-chip-pin-signature.html

EMV wikipost volunteers: kebosabi

What is EMV?
EMV is a defacto global standard of technology where there is a visible microchip on the front of the card. It looks like this:

Who issues them?
See Google Docs spreadsheet in Post #1

SFOAMS also has created a list of excellent webpage that shows US EMV cards in a more interactive interface

Another site, which lets you narrow the search for an EMV card by various parameters, is http://www.spotterswiki.com/emv/index.php.

Several credit unions issue some form of Chip-and-PIN credit cards or prepaid cards. Prepaid EMV cards however are not recommended due to junk fees. USAA (currently restricted to members of military) used to offer Chip-and-PIN cards, but as late has backtracked to Chip-and-Signature priority.

Hey that's a cool Google Docs list! I know others that aren't on that list. How can I help by adding them to the list?
My bad for not putting this into the wiki sooner. Right now, the Google Docs is locked out of editing and only in "read-only" view because there were instances in the past where people would just delete the rows not thinking that it affects others viewing the list.

If you promise not to delete any rows and input all the pertinent info (annual fee, rewards, FTF, etc.), I can provide you with edit access. Just shoot me a PM to kebosabi with your gmail address and I'll provide you edit access.

Thanks for helping out!


As of October 2014, no USA-based card issuer offers Chip-and-PIN priority cards except for BMO Harris (Diners Club) and UN Federal Credit Union. Other major USA-based banks such as BofA, Chase, Citi, as well as others issue Chip-and-Signature cards which may work at many automated kiosks. However, bear in mind the word may is used above is a context where there is no absolute certainty of success for certain environments such as automated kiosks due to different natures of offline and online transactions. It is highly recommended to read Post #3 which lists real life FTer examples on how Chip-and-Signature worked and did not work at various transaction environments.

Can I upgrade it right now?
If it's listed on that Google Docs spreadsheet or SFOAMS' Silk page, wouldn't hurt to call/twitter them for a free upgrade. If you get the response you don't like, hang up, try again.

What is the difference between Chip-and-Signature and Chip-and-PIN?
You insert the chipped card into the slot. The physical contact terminal will read the EMV chip and the terminal will automatically read the preferred cardholder verification methods (called CVM) for that card.

Chip-and-Signature means that the terminal will printout a receipt for you to sign. This is the most prevalent authentication for most US issued EMV cards. Chip-and-Signature helps in a way that it will get through to face-to-face merchant transactions where you and the merchant do not speak the same language.

Chip-and-PIN means that the terminal will prompt you to input a PIN for authentication. Some credit union issued credit cards will have this CVM as secondary if Chip-and-Signature cannot be done. Chip-and-PIN is the more prevalent method of authentication used outside the US, especially in transaction environments where no human interaction is needed (i.e. automated gas pumps, toll roads, train kiosks, etc.).

The Google Docs spreadsheet will list which CVM are used in the EMV cards listed. Some cards can only do Chip-and-Signature. Other cards can do both Chip-and-Signature and Chip-and-PIN. And others might have a third option called No CVM (no authentication needed) which is reserved for low value transactions.

One chip can hold a lot more data, therefore it is capable of doing multiple verification methods. That's one of the great things about EMV over the mag-stripe which can hold very little data.

I want to know for sure what my EMV chip does. Is there anyway I can test out my own EMV card to see what the CVM list is?
alexmt has written up a nice step-by-step procedure on Post #3615.

If most of the EMV cards in the US is the Chip-and-Signature type, doesn't that mean it's still useless abroad?
Depends if you see it as glass half empty or glass half full. See Post #3 for further details on how Chip-and-Signature has worked both successfully and unsuccessfully depending on the merchant transaction environment and use your best judgment whether which one is right for you.

Are there any places in the US that are accepting transactions via the EMV chip?
tmiw has created a dedicated Google maps webpage to show where EMV has been proven to work here: http://emvacceptedhere.com/ Per his Post #4240, feel free to add any places with active EMV terminals if you come across one.

As of 2014/05, the EMV terminals in most Walmarts and Sam's Clubs are being turned on. Hence, the best place to try them out would be your local Walmart or Sam's Club. For other merchants, it's slowly being phased in.

I hope people will post them in the Post your receipt of your 1st EMV based transaction in the US thread. cvarming has shown us an EMV transaction receipt from Brooklyn, NY in Post #2380. I myself had my first EMV based (Chip-and-Signature) transaction in two stores in the Los Angeles area, as shown in detail in Post #2705 (courtesy of WhatWhatTech for pointing these two stores out)

I don't want a chip in my card. I heard horror stories all over the media saying hackers can steal my credit card info from a mile away.
There are two types of chips. One is contactless and the other is contact. Cards can be either one or the other, or both.

In the Google Docs spreadsheet, the cards that are capable of contactless payments are listed seperately under the "RFID or NFC contactless chip" column. If it says yes, then that means it has the ability to do contactless payments. If it says no, it doesn't have that feature.

The one that the media has overhyped about hackers "stealing your information wirelessly" was the contactless type like this:

You are worried about this happening, right?

You don't have to worry. EMV is a chip standard that can have both contact and contactless interfaces. With the traditional contact interface, this means you actually have to physically insert the chip into a POS terminal for it to be authorized, like this:

With the contact interface, nothing is wireless. No data is sent out in a stand-alone contact type EMV chip. With the EMV contactless interface, data is sent wirelessly.

Furthermore, contactless chip cards are required to show a symbol (looks like Wi-Fi symbol) somewhere on the card that to denote it's capability as a contactless card. For example, here's an example of a Discover Card with contactless capability (in which Discover calls "Discover ZIP") showing the contactless symbol on the back of the card:

Don't believe everything that the media says. Besides, millions of people all over the world from London to Singapore, uses contactless payments daily in extremely crowded subways and mass transit with nary any problems. There are multiple layers of encrypted securities and keys that are needed to break the code.

Frankly, giving your physical card to a waiter/waitress who takes the card out of your view is much more susceptible to fraud than contactless payments.

Why should I care?
If you are an international traveler, you will want this because majority of the world has or in the process of converting to this payment format.


In fact, in 2012, even North Korea moved to the EMV format, leaving the US as one of the countries in the world that hasn't done so.

In addition, VISA, MC, AMEX, and Discover have all agreed to incentivize the USA shifting to EMV payments by 2015 by shifting liability for fraudulent transactions to merchants if they do not have EMV equipment and the cardholder has an EMV card. So if you travel internationally or would like to get one before the others, you might be interested in getting one.


BS! I had no problems using my card in [insert whereever country], [insert whatever point in time]
If you stick to the tourist path where they have lots of visitors from the US, you should have no problems using your mag-stripe only card in hotels and restaurants, at least for now. But as things can change as things go forward.

However, consider that once you start taking the off-beaten path, go to non-touristy places where they are not familiar with mag-stripes, rent a car and use toll roads, fill up gas, or try to buy train tickets you might end up into a trouble of the machine not recognizing your card because it lacks the chip. Furthermore, a lot of toll roads, gas pumps, and automated ticket machines lack any human assistance to help you when you need it the most.

But [insert credit card company] told me all merchants that display their logo must accept them! All I have to do is report them for violating their agreements, right?
There are several factors against this.

1. You can only speak English. The merchant representative, most likely a part-time clerk earning minimum wage, speaks in a different language, let's say French. If you have no French language skills, how are you going to get your point across? Are you going to whip out your cell phone at exorbitant int'l roaming charges and hope the customer service is going to translate it for you on the spot? Or maybe you might actually know French. But how about Swahili, Farsi, Balinese, or the multiple languages in mainland China?

2. Just like US, the rest of the world's businesses uses part-time minimum wage workers as cashiers to cut down on labor costs. Most of their SOP training manuals are written by MBA types to not to do anything they are not familiar with. Do not expect them to understand the intricate details of credit card mumbo jumbo. You don't expect Taco Bell employees to understand the minute details of Discover-JCB-Union Pay agreements, right? Same thing the other way around: be respectful as a guest in their country, prepare in advance in their ways, avoid being an "ugly American" stereotype.

3. You are a guest in their country. You are a minority. If 99.9% of their country's people and other tourists from around the world uses EMV, do you really think they are going to accomodate the 0.1% of American tourists who only have mag-stripes credit cards?

4. Again, you are a guest in their country. How would you, as an American standing in line, react if a Chinese tourist was clogging up the lines at a local Taco Bell because the clerk doesn't understand the Discover-Union Pay agreement and has trouble communicating between Mandarin spoken by the tourist and English spoken by the Taco Bell clerk? Same way the other way around. You do not want to clog up the lines for everyone. The less hassle, the better.

5. VISA and MC make tons of money from merchants in that country. Say SNCF French Rail. It's a billion dollar company in France. Do you think VISA is going to pull the plug of their relationship with SNCF because SNCF refuses to do mag-stripe processing at their unmanned train station kiosk? Of course not. Be realistic.

6. And lastly, if you're up against an unstaffed toll kiosk, gas pump or train ticket machine, are you going to yell curses at the machine?

But I want my credit card to be able to be used in the US too!
No worries. They have not gotten rid of the mag-stripe on the back of the card for backward compatibility reasons, just like we still have embossed numbers on our cards for backwards compatibility to using those old carbon copy imprinters.

[insert own Hyatt card image front and back together with red arrows pointing to all the backward compatibility features]

You use the chip on the front of the card abroad (for now), and the mag-stripe just like any other card for the US. Basically, you're increasing your credit card's acceptance rate by getting a card that both via the chip and the mag-stripe. You're getting a better deal for free.

And when 2015 comes along and US switches to EMV, you'll be way ahead of everyone else too!


So why did the rest of the world and the US moved/moving toward EMV?
Primarily, due to fraud concerns. You see, the mag-stripe has been with us since the 1950s. It may have been the most high tech thing back in the day, but with the technology that is available today, any shmo can pick up a $100 USB magnetic card skimming device off of eBay and get your credit card info.

And unlike skimming off contactless cards which actually need the person to have l33t programming skills, skimming off a magnetic stripe has become so ubiquitous that nary a day goes about skimming fraud going on somewhere in America, from gas pumps, Michael's stores (2011), Target breaches (2013), restaurant waiters/waitresses, to even McDonald's drive thrus.

https://www.google.com/search?q=skimming+fraud

These type of fraud used to be prevalent in Europe. But once they started switching over to EMV starting over 2 decades ago, this type of fraud went elsewhere. It went over to Asia, Canada and Mexico, Latin America, etc. etc. until they too began implementing EMV to combat skimming fraud. The US is practically the only country left that hasn't done so, therefore all the fraud that used to take place elsewhere is now happening here.


But EMV is old and it's not fool proof. Shouldn't we just skip over it and do something new instead?
Yes, EMV is old. It was developed in the 1990s and its smart card payment predecessor was first introduced in France. But as of today, it has become the defacto global standard of payments.

But then, what else is there? There is no other de facto global standard of payments alternative. For example, if we decide to skip over it and do something new, hypothetically like DNA matching technology, it still means US int'l travelers will continue to have problems abroad with useless plastic acceptance because no other country is using this DNA matching technology except the US.

Besides, nothing is fool proof. You can say that the bank vault isn't fool proof because you can crack it open if enough C4 is used. But your average low-life scumbag isn't likely to get military grade C4 easily either. But the bank vault does make it harder to get the bank's money over say a petty cash box. That's the point here. EMV is akin to a security tight bank vault, the old mag-stripe is akin to a petty cash box lying around inside the drawer.


I'm a business owner and I don't think EMV is going to take off. I'm not going to spend extra hundreds of dollars to upgrade my credit card machine. Convince me other wise why I should.
I can understand the added extra cost to your business once this switchover takes place. But before even saying that, look at your existing POS terminal. Does it have a slot somewhere to insert a card?

Most likely, if you had replaced your POS terminal within the past five years, you already have an EMV capable terminal. EMV is basically just not turned on yet from the processor and acquirer side.

If you have an EMV capable terminal, then a best bet would be to contact your acquirer to have the EMV feature turned on. You did your end of the deal already by having an EMV capable terminal, it is now the acquirers' responsibility to turn it on in accordance to the EMV switchover mandate.

And if you don't, you are going to replace your POS terminal anyway from common wear and tear. It isn't a hard switch-over. You can continue to use your POS terminal until it dies out because EMV cardholders will still have the mag-stripe on the back. And by the time your non-EMV capable POS terminal is up for replacement the market will be full with these newer POS terminals that can accept the mag-stripe, EMV, as well as contactless payments.

In addition, you may also want to check with your acquirer or processor about EMV capable terminals. Some of them are willing to replace your terminal for free in preparation for the US EMV switchover. Call and ask for details.


But what's in it for me? I'm the one that has to pay for the upgrade.
All the major card networks have given incentives for merchants for the upcoming EMV switchover.

If 75% or more of your credit card transactions are done on an EMV contact and contactless terminal, they are going to waive your annual PCI-DSS fees, which usually costs you around $5.00-$19.95/month per terminal. The overall long term cost savings of those compliance fees will be larger than the cost of an one time upgrade for the terminal.

The downside is that once EMV switchover happens and if you do not have a POS terminal that is able to accept EMV, the fraud liability shifts over to the merchant.

I own several fast food franchises. If I upgrade my POS terminals at all of my restaurants, it's going to cost me thousands, if not millions. I don't think anyone is going to use a fake credit card to buy $5 burgers. And if they do, wouldn't it be cheaper for me to eat the fraud cost?
Remember also that fraud isn't just committed by dishonest customers using fraudulent cards. Fraud can also happen with dishonest employees skimming off credit card data from the mag-stripe as in the case of a teenage McDonald's drive thru employee skimming off $13,000 of customers' credit cards in Olympia, WA. Consider the public relations fall out that your business may have if this happens (i.e. the big Target breach of 2013, where someone used a mag stripe card to load malware INTO Target's system). Is it worth risking to take such a huge PR disaster?
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USA EMV cards: Availability, Q&A (Chip & PIN -or- Chip & Signature) [2012-2015]

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Old May 21, 2014, 3:38 am
  #4426  
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Originally Posted by reclusive46
I've had this happen to me in a Florida Walmart with my Amex but not in any Walmart anywhere else. Bizarrely it still asks for the 3 digit code on the back even on an Amex card, its the only time I've ever used the 3 digit code.

I've also been asked for the 4 digit security at Macy's and at Sears.
I've never been asked in America for the 3 digit code, but with my Israeli Amex, some websites do ask for the 3 digit code instead of the 4.

What exactly is the purpose of the 3 digit code?

Originally Posted by reclusive46
Agreed. Although to be fair the only problems I ever really encounter are in the US. American banks just have to be awkward!

I will miss swiping and signing to an extent though, I always feel rather nostalgic when I'm paying in the US. Although I must be in the US far too often as last time I returned I was in Tesco and accidentally swiped my card through the self service machine (the swiper is separate from the chip and pin machine and therefore bypasses the service code protection). The cashier managing the self service machines didn't seem to mind but I did get a text from my bank asking if I'd made the transaction.
(Emphasis mine)

That's cool that they do that

Originally Posted by alexmt
Well, I did get curious about how easy to damage the chips are, so I took an old EMV card (a Citi Forward that quit swiping well) and decided to torture test it:

1. Crack chip. Used my fingernails to bend the centre of the chip until an audible snap. No sign from the front, but visible from the back that the chip inside is cracked.

Still reads fine - looking at my Amex BCE plus a B of A that was voided that I disassembled, this is because I probably cracked the clear plastic enclosure, not the chip itself.

2. Microwave. First a 1 second exposure. Then 3, 7, 15, and 30 second exposures while balanced on a cup with a bit of water in it (to avoid damage to the microwave).

Still reads fine after each of these exposures. I honestly expected even the 1 second might kill it, and I didn't think it had a chance of surviving 30 seconds.

3. Heat. 10 second soldering iron exposure at 380 C - card reads fine despite some deformation of the back plastic. light touch, barely placing the tip. 10 more seconds but soldering iron flat on the pad in a way to try and really transfer as much head as possible. Back SEVERELY deformed and bubbled out, had to press in while hot so that the card wouldn't be too thick to fit in reader (bubbled out to maybe 5 times card thickness).

Reads fine after both. Don't dare try longer cause I don't much like plastic smoke. Plus, my point isn't to prove it's possible to burn the card. It's to see if any realistic heat exposure can kill it, and I'd say that no - two 10 second exposures to the soldering iron, enough to get some smoke and lots of bubbling of the plastic is far more heat than, say, inside someone's car.

These things are pretty darn sturdy. Obviously not indestructible. Any of the things I'm doing would kill it if taken to a larger extreme. But I exposed it to more bending, microwaves and heat than would ever occur in real life...

P.S. - I just tried reading it again to be SURE it worked. I got "Get processing options failed" and got a partial read of the card. Not sure what happened, but five reads after all worked perfectly. So maybe some connection is a little flakier or maybe it was just a natural glitch, but it's 99% fine. Fantastically durable, far more so than I expected. Accidentally damaging the chip would be nearly impossible.
So you cracked, microwaved, burned, etc. your credit card? Everything OK?
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Old May 21, 2014, 4:08 am
  #4427  
 
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Originally Posted by joshwex90
So you cracked, microwaved, burned, etc. your credit card? Everything OK?
Absolutely, all in the name of science, plus curious the odds of the chip being damaged in the post or in any aspect of normal life due to physical means.

The crack was to simulate damage from post office sorting equipment, the microwave to simulate electrostatic discharge (I know, not quite the same, but a similar route of damage to electronics), and the heat to simulate sitting in a hot car (though 380 Celsius is obviously overkill for that particular test, remember I'm comparing ten second exposures to hours. Granted the bubbling through the back is probably proof this is far in excess of any normal heat condition).

My conclusion is that normal bending, pressure, static, and heat aren't gonna damage these chips. As an important distinction, I'm NOT claiming they're indestructible and I'm not claiming I could repeat everything I did to another card and find it equally undamaged. Each test involved me putting the card past what I expected its physical limits to be, and some cards will be more sensitive than others. For one, I'm sure a dual-interface card would have died in my microwave test...
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Old May 21, 2014, 4:43 am
  #4428  
 
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Originally Posted by alexmt
Absolutely, all in the name of science, plus curious the odds of the chip being damaged in the post or in any aspect of normal life due to physical means.

The crack was to simulate damage from post office sorting equipment, the microwave to simulate electrostatic discharge (I know, not quite the same, but a similar route of damage to electronics), and the heat to simulate sitting in a hot car (though 380 Celsius is obviously overkill for that particular test, remember I'm comparing ten second exposures to hours. Granted the bubbling through the back is probably proof this is far in excess of any normal heat condition).

My conclusion is that normal bending, pressure, static, and heat aren't gonna damage these chips. As an important distinction, I'm NOT claiming they're indestructible and I'm not claiming I could repeat everything I did to another card and find it equally undamaged. Each test involved me putting the card past what I expected its physical limits to be, and some cards will be more sensitive than others. For one, I'm sure a dual-interface card would have died in my microwave test...
Gee, and I thought it was geeky enough just to go out and buy a card reader to satisfy my curiosity about the CVV sequence on my EMV cards.

I do admire your test design and persistence, but what about the effects of noxious chemicals? Never know when you might drop your wallet in a sewer or whatever...
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Old May 21, 2014, 4:46 am
  #4429  
 
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Originally Posted by othermike27
Gee, and I thought it was geeky enough just to go out and buy a card reader to satisfy my curiosity about the CVV sequence on my EMV cards.

I do admire your test design and persistence, but what about the effects of noxious chemicals? Never know when you might drop your wallet in a sewer or whatever...
Challenge accepted. I just covered the chip in vinegar, which is a mild acid, and I'll do a test read in the morning. Again, I'm thinking things it's LIKELY to be exposed to... mild acids, nothing intense. More the kind of exposure from sweat and the like for corrosion resistance.
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Old May 21, 2014, 5:01 am
  #4430  
 
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Originally Posted by alexmt
Challenge accepted. I just covered the chip in vinegar, which is a mild acid, and I'll do a test read in the morning. Again, I'm thinking things it's LIKELY to be exposed to... mild acids, nothing intense. More the kind of exposure from sweat and the like for corrosion resistance.
We'll all be waiting for your report in the morning.

After that, the only other thing is to cut the cord off an old lamp, strip the wires bare, plug it in and ... I mean, you could be hit by lightning outside somewhere and you would want to be sure that you could whip out your EMV card to pay the ambulance crew.
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Old May 21, 2014, 5:04 am
  #4431  
 
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No no I've definitely been planning an electric test. The key issue there is doing it in a safe manner that is also realistic and not so mild the odds of destroying the chip are minimal.
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Old May 21, 2014, 5:23 am
  #4432  
 
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Originally Posted by alexmt
No no I've definitely been planning an electric test. The key issue there is doing it in a safe manner that is also realistic and not so mild the odds of destroying the chip are minimal.
I would guess that repeated thermal cycling (e.g., your hot car case) would be the most likely thing to damage the chip, or at least to disturb its packaging on the card. Sort of like the reports of heavily used swipe cards delaminating or whatever it is that happens when they start to fall apart. BTW, delaminating would seem to be less of a problem for a card that is only dipped in a chip reader, since that action is less stressful on the card than the act of swiping a card.

Happy experimenting!
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Old May 21, 2014, 10:36 am
  #4433  
 
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Originally Posted by alexmt
2. Microwave. First a 1 second exposure. Then 3, 7, 15, and 30 second exposures while balanced on a cup with a bit of water in it (to avoid damage to the microwave).

Still reads fine after each of these exposures. I honestly expected even the 1 second might kill it, and I didn't think it had a chance of surviving 30 seconds.
You remind me of those guys on Youtube who microwave everything! ^

Originally Posted by alexmt
No no I've definitely been planning an electric test. The key issue there is doing it in a safe manner that is also realistic and not so mild the odds of destroying the chip are minimal.
Sure, but where's the fun in that when you could do it Mythbusters style!

I'm personally interested in knowing whether the EMV chip still works with a bullet running through the main plastic part of the card itself.

Last edited by kebosabi; May 21, 2014 at 10:47 am
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Old May 21, 2014, 11:05 am
  #4434  
 
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Originally Posted by cbn42
Now I don't bother, I just use cash.
Waaaaaaaaait a second.

You're the Moderator in Manufactured Spend, and you use cash?
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Old May 21, 2014, 1:52 pm
  #4435  
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Originally Posted by cbn42
That's all good, but usually restaurants that participate in these networks are proper restaurants that aren't going to impose a surcharge, especially in California where it is illegal.
Indeed I haven't seen a surcharge at a Rewards Network restuarant yet, however, I have seen multiple Rewards Network restaurants in California that had/have a minimum ($5 or $10) for credit card purchases. The one which had a $10 minimum dropped out of the program after a few months and plain disappeared after a few more months. The one that has a $5 minimum is a Thai Spice location in Costa Mesa (and I haven't checked to see whether other Thai Space locations have that minimum, because only some of their locations are in the Rewards Network program at this point). Since I always order a main dish, I'm always above $5 "naturally", but someone ordering only egg rolls or only a drink could certianly come in way below the $5 minimum.
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Old May 21, 2014, 2:02 pm
  #4436  
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Originally Posted by alexmt
My conclusion is that normal bending, pressure, static, and heat aren't gonna damage these chips. As an important distinction, I'm NOT claiming they're indestructible
Ah, so you didn't get a kid to punch a zillion holes in it with a hole puncher? Or get a sushi chef to chop it up?
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Old May 21, 2014, 3:15 pm
  #4437  
 
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Originally Posted by kebosabi
You remind me of those guys on Youtube who microwave everything! ^



Sure, but where's the fun in that when you could do it Mythbusters style!

I'm personally interested in knowing whether the EMV chip still works with a bullet running through the main plastic part of the card itself.
I bet that chip would work just fine after being shot like that. The foot print of the chip is not much larger then what is exposed. So as long as you could get it in a reader and aligned right it would work. I would put it to a test next time I go to the range. But I don't think I could every make that sort of shot.
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Old May 21, 2014, 4:12 pm
  #4438  
 
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Originally Posted by dcman
I bet that chip would work just fine after being shot like that. The foot print of the chip is not much larger then what is exposed. So as long as you could get it in a reader and aligned right it would work. I would put it to a test next time I go to the range. But I don't think I could every make that sort of shot.
The footprint of the chip is actually far, far smaller than the exposed contact pad. Thus, why you can cut a SIM card down to nano (which usually involves cutting in to the contact pads) and it works fine.

As an aside, the overnight vinegar soak is what did it in. No visible signs of corrosion, but it no longer reads. The light comes on on my reader (no surprise since even a non-smartcard turns the light on, it's just a physical sensor), but the software reports no card detected.

There is no sign of surface corrosion, but I think the crack under the card and melting allowed the vinegar to work its way inside the chip and damage the electronics. Still, a much better showing than I anticipated.
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Old May 21, 2014, 4:13 pm
  #4439  
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Originally Posted by alexmt
The footprint of the chip is actually far, far smaller than the exposed contact pad. Thus, why you can cut a SIM card down to nano (which usually involves cutting in to the contact pads) and it works fine.

As an aside, the overnight vinegar soak is what did it in. No visible signs of corrosion, but it no longer reads. The light comes on on my reader (no surprise since even a non-smartcard turns the light on, it's just a physical sensor), but the software reports no card detected.

There is no sign of surface corrosion, but I think the crack under the card and melting allowed the vinegar to work its way inside the chip and damage the electronics. Still, a much better showing than I anticipated.
I wonder how many paranoid people are going to try to damage the chip so that the terminals will fallback to swiping. Would not be surprised at all if people did that in this country.
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Old May 21, 2014, 5:00 pm
  #4440  
 
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Originally Posted by tmiw
I wonder how many paranoid people are going to try to damage the chip so that the terminals will fallback to swiping. Would not be surprised at all if people did that in this country.
At least the knowledge of EMV chip as opposed to contactless chip is now spreading mainstream thanks to the media coverage about the Target breach and how vulnerable and outdated our mag-stripes are.

In the past, any notion of "chip" usually meant the latter and that was the one that spread the fear of "chipped" credit cards.

But then again, there's still news stories like these that keep popping up time and time again, spreading false info

New generation of credit cards pose little-known security risk (2014/03)

Originally Posted by News OK
Smith, who previously worked at Starbucks, said many of her customers at that retailer wrapped their credit cards in tinfoil for protection.

Last edited by kebosabi; May 21, 2014 at 5:07 pm
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