About.com: Internet/Network Security
Featuring articles and web links on Internet and network security for the Unix and Windows platforms.
Can Internet Security Ever Work?
Jon Callas co-founder of PGP provides an overview about the misidentification problem and general weakness of secure Internet protocols.
Common Vulnerabilities and Exposures
A searchable database of internet security problems.
Information about viruses, intrusion detection software, personal firewalls, and privacy. Hosts a streaming webcast called The Byte Show on security-related topics; CD-ROMs of interviews and software available.
Get Safe Online
UK government security service to help protect computers, mobile phones and other devices from malicious attack. Offers advice, bulletins, glossary, library and links plus an alerting service.
Google Online Security Blog
News and insights from Google on security and safety on the Internet.
Intrusion Detection FAQ
Frequently asked questions about intrusion detection, from the SANS Institute.
Offers news, tutorials, articles, and forum.