Related ArticlesSocial networking-style attacks are being used to phish details from World of Warcraft message board usersWorld of Warcraft users warned of malicious keylogger posts on message boards ahead of BlizzConEmployers block more social networking sites than shopping or pornography Social networking remains the most targeted area for attacks as SQL injections preferred

via www.scmagazineuk.com

The take-away here is to change your password. No one will take the initiative but you to learn how.

The check your backup systems.