Just in case anyone doesn't know, your liability for use of your card by theft of your card is limited to $50 - and most of the time, that is waived. If the thief only steals your credit card number, and not the card itself, you have $0 liability. Of course, that is dependent upon you reporting the loss as soon as you become aware of it. See
here and
here for some details on that.
Debit cards do not have the same level of protection - check the two above links for details on debit cards. The net is that you're sometimes better protected if you use a credit card instead of a debit card.
Mike