Here're some good collections of industrial conferences:
- ConCollector: http://cc.thinkst.com/conference/
- HelpNet Security Events: http://www.net-security.org/conferences.php
BlackHat: http://www.blackhat.com/
DefCon: http://www.defcon.org/
AppSec DC: http://appsecdc.org/
AppSec Ireland: http://www.appsecireland.org/
AppSec USA: http://www.appsecusa.org
AppSec AsiaPac: http://www.appsecasiapac.org
HITB: http://conference.hitb.org/
SyScan: http://www.syscan.org/
RECon: http://recon.cx/
ShmooCon: http://www.shmoocon.org/
DeepSec: https://deepsec.net/
HITCon: http://www.hitcon.org/
Hackito Ergo Sum: http://www.hackitoergosum.org/
PacSec: http://pacsec.jp/
Virus Bulletin: http://www.virusbtn.com/conference/index
CanSecWest: http://cansecwest.com
EUSecWest: http://eusecwest.com
RuxCon: http://www.ruxcon.org.au
AVAR: http://www.aavar.org
EICAR: http://www.eicar.org/2-0-Conference.html
BreakPoint: http://www.ruxconbreakpoint.com
ZeroNight: http://www.zeronights.org
Hashdays: https://www.hashdays.ch
Brucon: http://brucon.org
RSA: http://www.rsaconference.com
CCC: http://ccc.de
Honeynet: http://www.honeynet.org
SOURCE: http://www.sourceconference.com
MalCon: http://www.malcon.org
Hacker Halted USA: http://www.hackerhalted.com