Castle Cops
   Discussion forums. Subforums include firewalls, homeland security and specific security vendor products. Also offer software reviews and downloads.
   http://castlecops.com/

GFI Security and Messaging Software
   GFI Security and Messaging Software Forum.
   http://forums.gfi.com/

Gladiator Security Forum
   A forum to discuss general security matters.
   http://gladiator-antivirus.com/forum/

Network Security Forum
   The Network Security Forum is a place to discus topics on Security, Linux, Wireless, Hardware, Software, Operating Systems, etc.
   http://www.networksecuritytech.com

Security Forums Dot Com
   Offers support forums on a selection of IT security topics including firewalls, encryption and malicious software. Based in UK.
   http://www.security-forums.com/

Security and Privacy Forums
   Forums for discussing securing the home and SOHO users.
   http://www.dslreports.com/forum/security,1

Tech Support Guy Security Forums
   Since 1996, Tech Support Guy has been providing free technical support to computer users of all experience levels.
   http://forums.techguy.org/54-security/

Wilders Security Forums
   Security forums covering a wide array of topics including spyware, viruses and privacy software.
   http://www.wilderssecurity.com/