This is something a lot of people have been complaining about, but the solution is very simple; you can get the free mobile authenticator or you can buy one from the blizzard store. That is all you need if you are afraid of being hacked.Vierran said:I personally would like to hear more about what they are going to do about security concerns, more specifically the fact that all of their games will use the same Username and password which invites more opportunity to be hacked.