Scan your computers and also make sure none of your accounts info has been changed. There are a lot of posts this morning on the blizz support forums of people being hacked. One of my accounts was affected and they raped my guild bank and xfered toons to another server. It's weird how they selected to only touch that account and not the other four that I was on this morning.
The file I found to be a keylogger was called Urchin[3] it was a javascript that I found in my temporary internet files that popped up in kaspersky as: Malware Exploit.JS.RealPlr.am
The only sites that I visit = Thottbot, Dual-boxing.com, WoW Forums... I'm pretty sure that I will no longer troll the wow forums almost 99.9% sure this is where I picked it up. However, I'm good about not clicking random links and scanning files for viruses before I open them so I dunno.