> I assume there's more to be skimmed than just credit card numbers As usual, Le Wik to the rescue: http://en.wikipedia.org/wiki/Magnetic_stripe_card#Financial

> I assume there's more to be skimmed than just credit card numbers As usual, Le Wik to the rescue: http://en.wikipedia.org/wiki/Magnetic_stripe_card#Financial_cards http://en.wikipedia.org/wiki/Magnetic_stripe_card#Financial_... Looks like a skimmer will get you account number, name, expiration date, and some verification numbers. > So if you have 1 waiter with a Square-skimmer (or any other kind) and another without, can the first one get any more fraud-ready data than the second? No, if you give your card to a malicious waiter he can skim all of its data. Because you gave it to him.