List of hacker groups

• 414s, named after area code; gained notoriety in the early 1980s as a group of friends and computer hackers who broke into dozens of high-profile computer systems, including ones at Los Alamos National Laboratory, Sloan-Kettering Cancer Center, and Security Pacific Bank.
• Anonymous, originating in 2003, Anonymous was created as a group for people who fought for the rights for privacy.
• Chaos Computer Club, is based in Germany and other German-speaking countries. Famous among older hackers.
• Cicada 3301, a group of hackers and cryptographers that recruited from the public on three occasions between 2012 and 2014 by way of complex puzzles and hacking scavenger hunts.
• Croatian Revolution Hackers, a now defunct group of Croatian hackers credited with one of the largest attacks to have occurred in the Balkans.
• Cult of the Dead Cow, also known as cDc or cDc Communications, is a computer hacker and DIY media organization founded in 1984 in Lubbock, Texas.
• CyberVor is the moniker given to a group of Russian hackers responsible for perpetrating a major 2014 theft of internet credentials.
• DCLeaks, claims to be a group of "American hacktivists who respect and appreciate freedom of speech, human rights and government of the people."
• Decocidio#Ө is an anonymous, autonomous collective of hacktivists which is part of Earth First!, a radical environmental protest organisation, and adheres to Climate Justice Action.
• Derp A hacker group that attacked several game sites in late 2013.
• Digital DawgPound.
• Equation Group, suspected to be the offensive operations wing of the U.S. National Security Agency.
• Ghost Squad Hackers, or by the abbreviation "GSH" is a politically motivated hacktivist team led by the administrative de facto leader known as "s1ege". The group's prime intent and focus is embedded on anti-governmental/organization cyber protests within current involvements of media speculation and real life happenings in 2016 to present.
• Global kOS was a grey hat computer hacker group active from 1996 through 2000.
• globalHell was a group of hackers, composed of about 60 individuals. The group disbanded in 1999, when 12 members were prosecuted for computer intrusion and 30 for lesser offences.
• Goatse Security is a loose-knit, nine-person grey hat hacker group that specializes in uncovering security flaws.
• Hackweiser is an underground hacking group and hacking magazine founded in 1999.
• Honker Union is a group known for hacktivism, mainly present in Mainland China, whose members launched a series of attacks on websites in the United States, mostly government-related sites.
• L0pht, was a hacker collective active between 1992 and 2000 and located in the Boston, Massachusetts area.
• Legion of Doom; LOD was a hacker group active in the early 80s and mid-90s. Had noted rivalry with Masters of Deception.
• Legion Hacktivist Group, a Bangladeshi hacking group who hijacked Indian yahoo server and hacked online news portals of India.
• Level Seven was a hacking group during the mid to late 1990s. Eventually dispersing in early 2000 when their nominal leader "vent" was raided by the FBI on February 25, 2000.
• Lizard Squad
• LulzSec, a group of hackers originating and disbanding in 2011 that claimed to hack "for the lulz". Currently broken up.
• Masters of Deception, MOD's initial membership grew from meetings on Loop-Around Test Lines in the early- to mid-1980s. Had noted rivalry with Legion of Doom.
• Mazafaka, financially motivated group and crime forum.
• milw0rm is a group of "hacktivists" best known for penetrating the computers of the Bhabha Atomic Research Centre in Mumbai.
• NCPH is a Chinese hacker group based out of Zigong in Sichuan Province.
• OurMine, a hacker group that compromised celebrities and YouTuber's Twitter accounts for "security" reasons.
• P.H.I.R.M., an early hacking group which was founded in the early 1980s.
• Phone Losers of America, an internet prank call community founded in 1994 as a phone phreaking and hacking group.
• RedHack is a socialist hacker group based in Turkey, founded in 1997. They usually launch attacks against Turkish government's websites and leak secret documents of Turkish government.
• The Shadow Brokers, originating in summer 2016. They published several leaks of some of the National Security Agency hacking tools.
• TeaMp0isoN is a group of black-hat computer hackers established in mid-2009.
• TeslaTeam is a group of black-hat computer hackers from Serbia established 2010.
• TESO was a hacker group originating in Austria that was active primarily from 1998 to 2004.
• The Unknowns is a group of white-hat hackers that exploited many high-profiled websites and became very active in 2012 when the group was founded and disbanded.
• UGNazi, a hacking group led by JoshTheGod, founded in 2011. They are best known for several attacks on US government sites, leaking WHMC's database, DDoS attacks, and exposing personal information of celebrities and other high-profile figures on exposed.su.
• YIPL/TAP - Youth International Party Line or Technological Assistance Program, was an early phone phreak organization and publication created in the 1970s by activist Abbie Hoffman.
• Xbox Underground, an international group responsible for hacking game developers, including Microsoft.