This massive archive of presentations is offered for "the world wide computer security community." The archive can be accessed at no cost, and mainly consists of slide presentations from BlackHat conferences and conventions. These events began in 1997 to help professionals assess potential risks and recognize areas most vulnerable to security breaches. The material available in the archive includes slide presentations, audio and video, and other notes and tools. The BlackHat USA 2003 conference, held in July 2003, is the most recently added in the archive; however, streaming media from this event has not yet been posted.