I've gotten several emails lately saying my bid was cancelled.

"Dear eBay Community Member,

The bid that you entered for the item ( 577891**** ) has been cancelled.
To view the reason provided for the cancellation Click Here

Regards,
eBay "

The number and the Click Here were links to a website at aol. I didn't click them after checking their origin. Could have been some sort of virus or worse.

Be careful.