Credit cards are a hilarious form of security. Basically all confidential information is rightly printed on the card, so a thief has all he needs in order to empty the card. Only recently they've introduced passwords for online spending, but not everyone has activated them.
I just feel like banks take us for idiots, I'd rather have a real secret private key stored offline, than some pseudo-security with a bank card.
RE: How to recognize data on your credit card