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  how are you Its investigation into the breach revealed that whoever broke in got a copy of a list of all email addresses for Battle.net users outside China.
  
  Battle.net is the overarching account management and login service gamers use to play Blizzard games including World of Warcraft, StarCraft 2 and Diablo 3.
  
  Also accessed was information about the security questions and account authenticators used by players on North American servers. As wao-huall as players in the US and Canada this includes people in Latin America, Australia, New Zealand, and Southeast Asia.
  
  The attackers also stole a cryptographically scrambled list of the passwords used on North American Battle.net accounts. The technique Blizzard used to conceal these passwords, said Mr Morhaime, made it hard to unscramble them.
  
  Blizzard said that, as far as it knew, the information stolen would not be enough for attackers to gain unauthorised access to Battle.net accounts.
  
  Despite this, it urged players on North America servers to change their passwords, especially if that secret phrase or character combination was used on other services.
  
  It said it had begun an automatic process to force players to change their secret questions and get those who use authenticators to update their devices.
  
  It said it had found \"no evidence\" that credit card numbers, billing addresses or real names had been exposed.
  
  \"We are truly sorry that this has happened,\" said Mr Morhaime.
  
  Paul Ducklin, a researcher at security firm Sophos, said the breach was \"painful but probably not too bad\" in a blogpost about the attack. He said the way Blizzard stored and managed login and password data was \"sensible\" and should reduce the theft\'s impact.