Stoobalou writes "What appears to be the full version of Bungie's Halo Reach game has turned up on a number of file sharing sites. The hotly-anticipated multi-player shooter had been hosted on a private area of the Microsoft Live site in order for journalists to preview the release, but Microsoft has admitted that a security breach has meant that pirates have been able to bypass personal download codes given to writers. Disk images of the game are now appearing on a number of public torrent and P2P sites as well as on popular NZB aggregators and Usenet binaries newsgroups." The game isn't due to be released until September 14th. Microsoft is said to be "aggressively pursuing" whoever grabbed the files without their permission.