This is the official DEF CON YouTube channel. What is DEF CON? Check out We'll be posting videos and pictures from past conferences here, starting with DEF CON 20 and working backwards. If you have a DEF CON related video you want us to include in this channel please email us / fb / tweet and we'll get it added. Please remember, all content is copyright DEF CON Communications, Inc. You can share it for educational purposes, but you can not make _any_ money from doing so. If you do that would be a violation of the copyright as well as the spirit of DEF CON.