In a surprising turn of events, it seems that Blizzard Authenticator users are now being targeted to have their accounts hacked.  Long thought to be the safest way to keep your account safe, Authenticators users are now the target of attacks.  The best thing to keep your account safe, is use a great anti-virus program if you want to know my recommendations, read “System Protection, Use it or Lose It“.  Should you be worried? Yes!

If you use anything but my recommendations, then you place your account at risk… but you still might be safe.  However you should immediately scan your system for a file called “emcor.dll”.  If you find it, delete it and then change your password immediately – don’t change your password before deleting it and emptying the recycle bin.

Quote from: Kropacius (Source) After looking into this, it has been escalated, but it is a Man in the Middle attack. http://en.wikipedia.org/wiki/Man-in-the-middle_attack This is still perpetrated by key loggers, and no method is always 100% secure.