Many of the attendees at DEF CON include computer security professionals, journalists, lawyers, federal government employees, crackers, and hackers with a general interest in computer code and computer architecture. The event consists of several tracks of speakers about computer- and hacking-related subjects, as well as social events and contests in everything from creating the longest Wi-Fi connection and cracking computer systems to who can most effectively cool a beer in the Nevada heat. Other contests include lockpicking, robotic-related contests, art, slogan, coffee wars, and Capture the Flag. Capture the Flag (CTF) is perhaps the best known of these contests. It is a hacking competition where teams of hackers attempt to attack and defend computers and networks. CTF has been emulated at other hacking conferences as well as in academic and military contexts.

• Warballooning Demo
• Coffee Wars
• Defcon Shoot
• Buzzword Survivor
• EEE PC Mod WorkshopDefcon16: Defcon 16