If you make regular purchases at eBay, watch out for e-mails pretending to be from eBay staff. They will be claiming that eBay is "having problems with the billing information of your account." They will then request you to re-enter your financial data at a bogus eBay site. Well, DON'T! If you get such e-mails, just delete them. Don't bother reading them, don't click on the link and, of course, don't forward them. Just delete them!