I have been the victim of eBay scams. eBay jumps on the eventually, BUT, they imply that you, the legitimate eBay user is at fault. Either you answered a spam email or similar. They will never admit that their systems are "hackable".
I have a MP3 of an ABC Radio National show "Background Briefing" from 24/6/07 about internet security and your banking details. Only the transcript is available on-line
here, but I have put it on Media Fire to download
here. It talks about the lack of internet security in this Australia, and how even top U.S. government officials have almost given up in internet security. The Media Fire download is 22MB but if you can download it, it's worth it.