The firm admits there were indeed intrusions, adding that such occurrences are not uncommon with WoW expansions and new releases.
“Historically, the release of a new game — such as a World of Warcraft expansion — will result in an increase in reports of individual account compromises, and that’s exactly what we’re seeing now with Diablo 3,” Blizzard told Joystiq.
“We know how frustrating it can be to become the victim of account theft, and as always, we’re dedicated to doing everything we can to help our players keep their Battle.net accounts safe — and we appreciate everyone who’s doing their part to help protect their accounts as well.
We also have other measures built into Battle.net to help protect players. Occasionally, when Battle.net detects unusual login activity that differs from your normal behavior — such as logging in from an unfamiliar location — we may prompt you for additional information (such as the answer to one of your security questions) and/or require you to perform a password reset through the Battle.net website.
World of Warcraft players might be familiar with this security method already, and Diablo III players may begin to encounter it as well.”
sad.
another reason why blizard needs to add offline functionality to the game!