Due to a recent breach on Blizzard’s internal network the company is recommending users change their Battle.net account passwords. The actual password info accessed was scrambled, and this recommendation is just a precaution. It seems no personal information was accessed says Blizzard.
Blizzard also notes that secret question answers may have been accessed as well as mobile authenticators. Automated propts are planned to inform users of change their secret questions and update their authenticator software.
After the break you can find the full securty update from Blizzard.
