Sunday, August 7, 2016 2 years ago Las Vegas, USA
DEF CON has been a part of the hacker community for over two decades. Originally started in 1993, it was a meant to be a party for members of "Platinum Net", a Fido protocol based hacking network out of Canada. DEF CON has now become one of the oldest continuously running hacker conventions around, and also one of the largest.
Cash only at the door, there is no pre-registration.