1. Kevin Mitnick
- Alias: The “Condor”
- Country: United States
- Background:
- Known as one of the most wanted hackers in the U.S. during the 1980s and early 1990s.
- Mitnick gained unauthorized access to numerous systems, including those of major corporations like IBM, Nokia, and DEC (Digital Equipment Corporation).
- Notable Crimes:
- Specialized in social engineering and manipulation, deceiving employees and security staff to gain access to computer systems.
- Involved in high-profile hacks, leading to his arrest in 1995 after a 2.5-year pursuit by the FBI.
- Current Work:
- Now works as a security consultant and runs Mitnick Security Consulting LLC.
- A well-regarded figure in cybersecurity, he’s authored several books, including The Art of Deception and Ghost in the Wires.
2. Anonymous
- Alias: Anonymous (not an individual, but a collective)
- Country: Global
- Background:
- Anonymous is a decentralized hacktivist group known for its characteristic Guy Fawkes mask.
- Notable Activities:
- Gained notoriety for attacking organizations it views as corrupt or authoritarian, including the Church of Scientology, ISIS-related websites, and government agencies.
- Uses DDoS (Distributed Denial of Service) attacks, hacking, and public leaks to disrupt targets.
- Impact:
- Anonymous often takes a stand on social justice and free speech issues, playing a significant role in hacktivism around the world.
3. Adrian Lamo
- Alias: “The Homeless Hacker”
- Country: United States
- Background:
- Known for his “gray hat” activities, Lamo hacked into major organizations like Microsoft, Yahoo, and The New York Times.
- Notable Crimes:
- Gained unauthorized access to various corporate systems but often reported the vulnerabilities he found.
- His most controversial action was reporting U.S. Army whistleblower Chelsea Manning, leading to her arrest.
- Death: Passed away in 2018 under unclear circumstances.
4. Gary McKinnon
- Alias: “Solo”
- Country: United Kingdom
- Background:
- McKinnon hacked into nearly 100 U.S. military and NASA computers in 2001–2002.
- Notable Activities:
- He claimed to be searching for information about UFOs and free energy suppression but caused significant disruptions, including data deletion.
- Considered one of the largest hacks on U.S. military systems; U.S. authorities sought extradition.
- Outcome:
- After a lengthy legal battle, the U.K. government blocked his extradition due to health concerns.
5. Albert Gonzalez
- Alias: “soupnazi”
- Country: United States
- Background:
- Known for masterminding one of the largest credit card thefts in history.
- Notable Crimes:
- He and his team stole over 170 million credit card numbers from companies like TJX, Heartland Payment Systems, and others from 2005 to 2007.
- Used SQL injection to exploit vulnerabilities in corporate networks.
- Conviction:
- Gonzalez was arrested in 2008 and sentenced to 20 years in prison.
6. LulzSec (Lulz Security)
- Alias: Not an individual, but a hacking group
- Country: Global
- Background:
- A group of hackers that gained attention for its attacks on high-profile corporations and government websites.
- Notable Activities:
- Attacked targets like Sony Pictures, the CIA, News International, and the U.S. Senate.
- Known for their motto, “Laughing at your security since 2011,” LulzSec primarily aimed to expose security flaws rather than cause permanent damage.
- Outcome:
- Several key members were arrested, and the group officially disbanded after a 50-day hacking spree in 2011.
7. Matthew Bevan and Richard Pryce
- Alias: “Kuji” (Bevan) and “Datastream Cowboy” (Pryce)
- Country: United Kingdom
- Background:
- British hackers who gained attention for hacking into U.S. military systems in 1996.
- Notable Crimes:
- Gained access to Air Force, NASA, and NATO systems and almost started an international incident when they accessed a South Korean nuclear facility.
- Impact:
- Their case highlighted security weaknesses in military computer systems.
- Outcome:
- Both were caught, but Bevan was acquitted, and Pryce received a probationary sentence.
8. Jeanson James Ancheta
- Alias: N/A
- Country: United States
- Background:
- A hacker known for his work with botnets (networks of compromised computers).
- Notable Crimes:
- Ran a large-scale botnet operation that infected thousands of computers with malware.
- Used these botnets to launch DDoS attacks and rented them out for profit.
- Conviction:
- He was arrested in 2005 and sentenced to 57 months in prison, becoming the first hacker to be jailed for controlling a botnet.
9. Guccifer 2.0
- Alias: Guccifer 2.0
- Country: Allegedly Russia, although the identity is disputed.
- Background:
- Claimed to be a Romanian hacker, though intelligence agencies later attributed the alias to Russian operatives.
- Notable Activities:
- Played a role in hacking the Democratic National Committee (DNC) in 2016, leaking data that influenced the U.S. presidential election.
- Impact:
- Created significant controversy and added to concerns over international cyber-espionage and election security.
- Outcome:
- The case remains one of the most prominent examples of political cyber interference.
10. Jonathan James
- Alias: “c0mrade”
- Country: United States
- Background:
- Gained notoriety as a teenager for breaking into high-security systems.
- Notable Crimes:
- Hacked into NASA and the U.S. Department of Defense systems, stealing software that controlled critical aspects of the International Space Station.
- Caused NASA to shut down its systems temporarily to address the breach.
- Tragic End:
- James committed suicide in 2008, stating his distrust of the justice system after being implicated in a larger hacking case involving credit card theft.