#1 - July 28, 2010, 2:10 p.m.
Bigg, you need to secure your email.
The last little while, there has been an email going out when an authenticator is added. For them to have put this on that is a VERY strong indication they are actually into your email account.
Looks like they've also tried to transfer your characters.
That authenticator is no longer on this account, but even resetting your password or changing your email may not deter them if they are into your email proper.
I highly recommend you first do a full security sweep of your system, then setup a new - unrelated email and call Billing to have that changed.
This sticky may be useful.
Account Hacked? Security Issue? Look Here!
http://forums.worldofwarcraft.com/thread.html?topicId=24702231244 You may also want to look into getting an authenticator for your account. It's no substitute for good security habits, but it will help keep them out of your WoW account.
Blizzard Store
http://us.blizzard.com/store/browse.xml?f=c:6 Mobile Authenticator
http://us.blizzard.com/support/article.xml?locale=en_US&articleId=26109