compromised, Blizzard investigating, Blizzard's online service that stores game data, financial, and other personal user information, has been compromised., Blizzard's online service that stores data, financial, and other personal user information for games like Diablo 3 and World of Warcraft, has been compromised, according to Mike Morhaime, Blizzard's president.

"This week, our security team found an unauthorized and illegal access into our internal network here at Blizzard," Morhaime wrote on the company's website. "We quickly took steps to close off this access and began working with law enforcement and security experts to investigate what happened."

Morhaime explains that Blizzard has found "no evidence" that personal information such as credit card information, billing addresses, or users' real names were accessed. However, a list of email addresses for users outside of China, the answer to a security question, and information regarding mobile and dial-in access were accessed.

Cryptographically scrambled versions of passwords for players on North American servers were accessed. Although the passwords were encrypted, Morhaime recommends that players on these servers change their passwords as well the same password used on any other service.

In the next few days, Blizzard will prompt North American users to change their security questions and answers, and mobile authenticator users will be prompted to update their software. Blizzard also posted an FAQ to address any remaining questions.

More from Polygon

The Crew closed beta - Overview video

  • Polygon goes to Poland

  • DOTA 2 gameplay video

  • Battleborn debut trailer

  • Fortnite preview

Latest Discussions

Log In Sign Up

Log In Sign Up

Forgot password?

We'll email you a reset link.

If you signed up using a 3rd party account like Facebook or Twitter, please login with it instead.

Forgot password?

Try another email?

Almost done,

By becoming a registered user, you are also agreeing to our Terms and confirming that you have read our Privacy Policy.



Choose an available username to complete sign up.

In order to provide our users with a better overall experience, we ask for more information from Facebook when using it to login so that we can learn more about our audience and provide you with the best possible experience. We do not store specific user data and the sharing of it is not required to login with Facebook.