"Many Cedega (formerly WINEX) users claim to have been mistakenly caught up in a security sweep of the U.S. game servers performed by Blizzard's World of Warcraft Game Master (GM) staff. Affected users received the same strongly-worded 'Notice of Account Closure' email messages that true bot users did, in which they were accused of the 'Use of Third Party Automation Software.' While diagnosis of this event continues early speculation points to Blizzard's use of the Warden anti-cheating spyware application that is bundled with World of Warcraft, and the odd things that may have been produced by it when it was run via Cedega. Emails to World of Warcraft's Account Administration staff continue to go unanswered while the list of affected people continues to grow."
http://transgaming.org/forum/viewtopic.php?p=41042