Active Matrix' Hideaway - Computer security, hacking, exploits, cryptos, remailers, etc.Toxyn Technologies, Inc. - Hacking related group.
Pulhas WebSite - A collection of current hacker news articles.
Eleventh Alliance - Eleventh Alliance - created by hackers for hackers.
L0pht Heavy Industries - The good guys.
Cult of the Dead Cow - cDc - The group responsible for the famous "Back Orifice" Trojan a.k.a "BO".
TwistedinterneT ServiceS International Inc. - Underground Hacker site with an extensive archive & library.
The International Information Retrieval Guild - IIRG since 1982 publishers of Phantasy and Cybertek Magazines.
Free Kevin Mitnick - Group in support of Kevin Mitnick, a hacker imprisoned from 1994 to Jan, 2000.
Chaos Computer Club - German hacker group.
Beerninjas - A group of computer enthusiasts with the desire to learn the truth and expose myths and hoaxes.
Twentythreedotorg - SoCal's hacking group. Canadian free since 1999.
Hackeroid - Russian based hacking group.
Progenic Security - Security advice and exploits.
Hackers Of RM Connect - Password crackers, keyloggers, and articles.
Planet Zenn-La Hackers - Chat, bulletin board, and featured downloads.
White Knight Hackers - Forensics software, penetration testing, and security design.
HackHull - Group of hackers in the United Kingdom. Information about meetings, projects, and links to personal pages.
Neoworld: The Indian Hacker Group - Member profiles, hacking tools, and links
The Southbend Hackers Club - Club based in Southbend, IN. Site a message board, updates, and links.
Moloch Industries - A New York hacher group.
RenegadeForce PHC HQ - The HQ of RenegadeForce has Programming, Hacking & Cracking etc.
The Electronical Assassins - Member information, links, and hacking tools.
DALnet's Darknet.org Homepage. - A site about Internet Security, Exploits, Hacking, Cracking and DOS. Many useful links to security related content.
Nomad Mobile Research Centre - Variety of interesting Projects, Papers and Programs
Mad Hacker Labs - Project information and member profiles.
Digital Information Society - Exploit archive, phreaking information, and group member pages.
The Hacker's Choice - Group that has released quite a lot interesting papers and programs
HATE (Hackers Against Tyranny Everywhere) - Anarchy, HAcking, Phreaking files for newbies.
Attrition.org - Attrition is an eclectic collection of internet and computer security resources.
Synnergy Networks - Security research site with quality papers and exploits
CyberWarrior Main Base - CyberWarrior specializes in tutorials, downloads ,and other information.
Blue Collar Hacker's Union - Information about free ISPs, phreaking, programming, and member pages.
Demonic Hacking Clan - H/P/V/C/A. Direct Downloads. A well rounded hacking site.
Crewl Underground Madness - Belgian group specialized in computer and network (in)security, hacking, coding and phreaking
Hexanalys - Tutorials on Security and Programming.
NevadaUnderground - Underground group website with messageboard and meeting information
