Horman , the video game-writing nephew , sat attentively in the second row of a small classroom on Saturday , fiddling with a Rubik 's Cube during sessions with titles like `` Secrets Revealed , '' `` Meet the Feds '' and `` Google Hacking . '' DEF CON is the world 's largest gathering of computer hackers . This year , the conference held classes for kids age 8 to 16 . DEF for Kids aims to encourage kids to be more secure online .
DEF CON is the world 's largest gathering of computer hackers . This year , the conference held classes for kids age 8 to 16 . DEF for Kids aims to encourage kids to be more secure online .