Free Security Tools - join
Discussion and collaboration group that shares free network security tools for the improvement and distribution of information security related practices.
Low activity, 66 members, moderated

Security Audit - join
All topics realated to security audits. (Exploits, vulnerabilities, conducting audits, reporting, black box testing, white box testing, buffer overflows, Audit Risk Review, OCC etc,..)
Low activity, 50 members

ISO17799InformationSecurity - join
Newsgroup about the ISO17799 Standard for Information Security, Security Policies and ISMS focusing mainly on the Risk Assessment and Risk Treatment parts of the standard
Low activity, 39 members