After the not so successful release of Diablo III, a lot of players reported that their accounts were compromised. The news came in nearly a week after Diablo III was released and was revealed on the official forum of the game. Apparently hundreds of players claimed that their accounts were compromised and they lost a lot of items and gold. Some users even claimed that they had the Blizzard authenticator, which guarantees no one can hack the account if it’s in place, but their accounts still got hacked.
Contrary to popular belief, Blizzard responded that it is impossible to hack accounts when people get into a public game. A lot of players had complained that their accounts saw unauthorized access after they had joined a public game. According to Blizzard, the infrastructure of public games and Diablo III user accounts is created in such a way that it cannot be hacked when you are on a public game.
So what could have hacked these accounts? Apparently everything the players have said so far points towards the most popular way of hacking accounts that is keyloggers. Users who have never played World of Warcraft are unaware that the popularity of the game gave opportunity to sell off characters using others accounts, which led for the hackers to get control of an account and then sell it to people for real money. Diablo III user accounts are no different from World of Warcraft. Anyone can get hold of an account, level up a character to max and sell it for real money.
To best avoid future account compromises, Blizzard once again suggested using the official authenticator to log accounts. The news of accounts getting hacked with authenticator has been invalidated by Blizzard. The developer has confirmed that all the accounts that were hacked had no authenticator enabled on them.
Another thing to keep in mind is your overall internet security. If you are playing Diablo III with no antivirus at all, you must get yourself one and fully scan your system. This way you will be able to get rid of all the tricky keyloggers that may be stealing your credentials.