BugTraq is the computer security industry's MailingList. If there is a vulnerability in almost anything, you'll hear about it here first.
From the blurb: BugTraq is a full disclosure moderated mailing list for the detailed discussion and announcement of computer security vulnerabilities: what they are, how to exploit them, and how to fix them..
Start at 
http://www.securityfocus.com/popups/forums/bugtraq/intro.shtml; or if you're a MicrosoftWindows SystemAdministrator, NTBugTraq can be found at http://www.ntbugtraq.com/.
2 pages link to BugTraq:
