Defocon 14 will be at a new location- the first time defcon will move in seven years. Registration is 100 dollars cash at the door. Come as see from how far away you can read a rfid chip and other privacy issues.
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www.defcon.org
Defcon 14
get out your toys, get out your tools
The oldest and largest hacker conference around, with the old and new contests: TCP/IP Enabled Device & Peripheral Contest, Robot Warez 3, "Beverage" Cooling Contraption Contest, Capture the flag, Hacker jeopardy and more.