Blizzard Entertainment, the games developer responsible for World of Warcraft and Diablo, has been hacked and the firm is warning users of its cloud gaming network, Battle.net, to change their passwords.
The focus of the breach appears to be the company’s North American servers, which host players from North, Central and South America, Australia, New Zealand and South East Asia.
Data stolen from these servers include answers to personal security questions, information relating to mobile and dial-in authenticators and cryptographically scrambled passwords. A list of email addresses for global Battle.net users has also been taken.
“Based on what we currently know, this information alone is NOT enough for anyone to gain access to Battle.net accounts,” said presdent and co-founder of Blizzard, Mike Morhaime.
Morhaime added that the scrambled passwords would be very hard to decrypt and each one would have to be deciphered individually.
“As a precaution, however, we recommend that players on the North American servers change their passwords. Moreover, if you have used the same or similar passwords for other purposes, you may want to consider changing those passwords as well,” Morhaime said.
The company said it would also be prompting players to change their secret questions and answers over the next few days and urging mobile authenticator users to update their software.
“We take the security of your personal information very seriously, and we are truly sorry that this has happened,” Morhaime said.
Blizzard has set up a special FAQ page for concerned Battle.net users, which can be found here.
