CCBill Security

[cots]

I recently joined one of my own sites to test something out. I joined via CCBill, got my email confirmation as a customer, plus my sale confirmation to the webmaster. That's all.

Less than 12 hours later Password Sentry blocked me for abuse of my user name. We set the block, right or wrong, at 4 IP addresses. I checked the logs and my user name had been used from 4 different countries in no time at all.

What the fuck? I deleted the mails as soon as I received them. I use Macs not PCs so should be pretty secure. So is CCBill that secure?

Has this happened to anyone else or do you have any thoughts on how it happened?