Microsoft Security Notification Microsoft Sec Notification Beware that MS often uses these security bulletins as marketing propaganda to downplay serious vulnerabilities in their products—note how most have a prominent and often-misleading "mitigating factors" section.
WebApp Security Web App Security Provides insights on the unique challenges which make web applications notoriously hard to secure, as well as attack methods including SQL injection, cross-site scripting (XSS), cross-site request forgery, and more.
Honeypots Honeypots Discussions about tracking attackers by setting up decoy honeypots or entire <A HREF="http://www.honeynet.org">honeynet</A> networks.
VulnWatch VulnWatch A non-discussion, non-patch, all-vulnerability annoucement list supported and run by a community of volunteer moderators distributed around the world.
Nmap Hackers Nmap Hackers Moderated list for the most important new releases and announcements regarding the <A HREF="http://nmap.org">Nmap Security Scanner</A> and related projects. We recommend that all Nmap users <a href="http://cgi.insecure.org/mailman/listinfo/nmap-hackers">subscribe</a>.
Nmap Development Nmap Development Unmoderated technical development forum for debating ideas, patches, and suggestions regarding proposed changes to <A HREF="http://nmap.org">Nmap</A> and related projects.