According to Diablo III, Blizzard's Battle. net service has been hacked. In an update on it's website, the company revealed that their security team discovered unauthorized and illegal access into their internal network. Investigation involving security experts and law enforcement are underway. Blizzard says that based on their assessment, this data alone is not enough to access accounts, though they are urging players to change their passwords and secret questions to be on the safe side. Battle. net accounts for World of Warcraft, Starcraft, and Diablo may have been compromised. The team says they quickly took steps to seal off access and starting an investigation immediately. Blizzard is saying that there's no evidence that financial data like credit cards, billing addresses or real names were compromised. Other data, however, including a list of email addresses for global Battle. net users, answers to the personal security question and information related to mobile and dial-in Authenticators was accessed. Blizzard co-founder Mike Morhaime, in a statement revealed that Battle. net's internal systems were illegally accessed on Aug. 4 and player account information was stolen. Morhaime said, "Even when you are in the business of fun, not every week ends up being fun."
Battle. net's North American servers, which actually hosts accounts from North America, Latin America, Australia, New Zealand, and Southeast Asia were the most significantly impacted in this breach, Blizzard said.