Blackhat
BruCON
Chaos Communication Congress
CodeCon
ConfCon
Deepsec
DEF CON
Derbycon
DojoCon
HoHoCon
HOPE
Kansasfest
QuahogCon
Notacon
PhreakNIC
REcon
ROFLCon
Rubi-Con
ShmooCon
SummerCon
THOTCON
ToorCon
Troopers
USENIX
Vintage Computer Festival
