Well, I just finished Hell difficulty and got to level 60 with my wizard today. Despite that, I was also hacked. I acted fast enough to save my gold and my weapon, but all of my gems and armor was gone when I logged back in (High end gems and armor, I might add).
Now, I won't rage or cry about it because it is just a game after all and I do have a life besides it. Let this serve as a warning for people though, there are people out there looking to take all of your shit already, and I was victim to it. I'm not the only one either, there have been several.
Guys, make sure you have an authenticator and be sure that your password is a good one. I changed my password to a simple one and removed the authenticator so that my dad could play the game on his computer from my account. Probably not the best decision I've ever made. I've done gone and put the security back up, but the damage is done.