Did you have an authenticator? No you didn't because if you did you wouldn't have been hacked.
Sorry to be so snide about it, but it's just getting ridiculous how many people think that this issue is blizzard's fault and it 100% is not. I was hacked about 2 years ago when playing WoW and learned real quick after investigating just how easy it is to do.
Your an idiot... Go look at the pc gamer magazine articles about their very own getting hacked WITH AN AUTHENTICATOR...**GASPH* YEA that riiight... THEY USED ONE AND still got hacked.. I am so tired of all these script kiddies thinking they know it was a keylogger and that if only you had an authenticator going it wouldnt have happened that might be true IF IT WASNT SERVER SIDE..