List of hacker groups
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- 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. The group didn't accomplish that much, others that it gave a group of Black Hat hackers the idea to recreate anonymous as an idea free for all who wanted a private life. Therefore anonymous is not considered a group, but an idea
- 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 (DDP)
- Equation Group, suspected to be the offensive operations wing of the U.S. National Security Agency.
- Global kOS was a grey hat (leaning black 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 (GoatSec) 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.
- 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.
- LulzSec, a group of hackers originating and disbanding in 2011 that claimed to hack "for the lulz". Currently broken up.
- Legion of Doom; LOD was a hacker group active in the early 80s and mid-90s. Had noted rivalry with Masters of Deception (MOD).
- 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 (LOD).
- Beautiful Mind security group,a group of hackers -Gray Hat-Recovering Accounts and Close Sites and they are also working to restore hacked PSN(Playstation Network) accounts.
- 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 (BARC) 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. The PHIRM was an early hacking group which was founded in the early 1980s.
- 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.
- Shadow Brokers (The) (TSB), originating in summer 2016. They published several leaks of some of the National Security Agency (NSA) hacking tools.
- Syrian Electronic Army is a group that claims responsibility for defacing or otherwise compromising scores of websites that it contends spread news hostile to the Syrian government or fake news
- 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.
- Turkz Group is a group of white-hat hackers that hacked websites and download confidential informations for national purposes.
- UGNazi A hacking group best known for several attacks on US government sites.
- WarHats A hacking group that established in early-2017
- 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
- List of hackers
- List of fictional hackers
- List of computer criminals
- Information security
- Computer security conference
- "Detroit Free Press". Detroit Free Press. September 27, 1983.
- "The internet mystery that has the world baffled". Daily Telegraph. 25 November 2013. Archived from the original on 25 November 2013. Retrieved 25 November 2013.
- Ernst, Douglas (November 26, 2013). "Secret society seeks world's brightest: Recruits navigate 'darknet' filled with terrorism, drugs". The Washington Times. Archived from the original on 25 December 2013. Retrieved 13 December 2013.
- Bell, Chris. "Cicada 3301 update: the baffling internet mystery is back". Daily Telegraph. Archived from the original on January 7, 2014.
- Hern, Alex. "Cicada 3301: I tried the hardest puzzle on the internet and failed spectacularly". The Guardian. Archived from the original on January 11, 2014.