This page provides links to a number of security-related mailing list resources.
Public Lists
oss [dash] security [at] lists [dot] openwall [dot] com: The open source software security mailing list (oss-security), which is a counter-part to this wiki. This is a public mailing list for anyone to subscribe to. Non-members may post to the list, however their messages will be moderated before release. This list is an open list for open source software authors and vendors to discuss public security issues.
Private Lists
Other Resources
seclists.org maintains a list of security-related public mailing lists with information on them, links to archives, etc.