The downtime that plagued PC gamers trying to play Assassin's Creed II yesterday was the result of a denial-of-service attack, causing one of Ubisoft's new DRM-servers to become unreachable. But hey, at least no one has hacked the game yet.

Ubisoft's controversial new digital rights management solution went gone live for both Assassin's Creed II and Silent Hunter V this weekend, only to go dead for a large number of users shortly thereafter. The DRM system requires users be connected to the internet while playing the game in order for it to function, and many players reported not being able to connect to Ubisoft, which meant they were not able to play.