Someone has been fraudulently using my credit card. Fortunately, the bank was on the ball and only two charges of $1 each went through (presumably to verify the account info), and three larger charges in the $700-$800 range were blocked. Fortunately, I don't use the account in question, so getting a new account number is not a major inconvenience, and I'm not responsible for the charges. I do wonder how they got my account number, but assuming I don't have problems with the credit card company down the road, I don't seem any worse off for being the victim of this crime. I'll have to pick up a copy of my credit report in a month or so and see how things look, but I can do that for free.