Center for Education and Research in Information Assurance and Security. University center for multidisciplinary research and education in areas of information security.

Established in 2003 to protect the nation's Internet infrastructure, US-CERT coordinates defense against and responses to cyber attacks across the nation.

Lists of security problems fixed in released versions of the Apache HTTP Server.

Australian Computer Emergency Response Team. Advisories and tools.

Independent source for security vulnerabilities, alerts, and threats.

Studies Internet security vulnerabilities, provides incident response services to sites that have been the victims of attack, publishes a variety of security alerts, researches security and survivability in wide-area-networked computing, and develops information to improve site security.

Fee based patch alert service.

Mailing list dedicated to the discussion of patch management.

Cooperative cyber threat monitor and alert system. Features daily handler diaries that summarize and analyze new threats and events.

Provides security advisories and information about patches, and provides software for vulnerability management.

Full disclosure computer security vulnerabilities feed. [RSS]