A collection of internet and computer security resources.

Offers weblog, team background, tools and BackOrifice downloads, and news archive.

Organization dedicated to the research and demonstration of vulnerabilities in network services and communication security. Offers papers, security tools, exploit code, advisories and a discussion forum.

Hacker lab engaged in vulnerabilities research. Security papers, full disclosure advisories and current projects. Also features a FAQ on hacking techniques.

SoCal's hacking group. Canadian free since 1999.

Security advice and exploits.

Coding group. Offer hacking tools and vulnerability exploits.

Offers details regarding select viruses, overflow and security exploits, bios tools, and crytography. Also features book reviews on assembly programming and computer security.

Belgian group specialized in computer and network (in)security, hacking, coding and phreaking.

Group of hackers in the United Kingdom. Information about meetings, projects, and links to personal pages.