John McAfee was an American entrepreneur and cybersecurity expert. He gained notoriety as the founder of McAfee Associates, a software company known for developing one of the first commercial antivirus programs. Here is a brief explanation of John McAfee and some key aspects of his life:

Early Life and Career: John McAfee was born on September 18, 1945, in the United Kingdom. He studied mathematics at Roanoke College and later pursued a graduate degree in mathematics at Northeast Louisiana University. McAfee started his professional career as a programmer and held various positions in the technology industry.

McAfee Antivirus: In 1987, McAfee founded McAfee Associates, a company focused on developing antivirus software. The company released McAfee VirusScan, which became one of the most popular antivirus programs at the time. It helped protect computer systems from malware and viruses.

Departure from McAfee: In the early 1990s, McAfee resigned from his position at McAfee Associates. He sold his stake in the company and moved on to pursue other ventures. The company continued to operate and eventually merged with Network General to form Network Associates.

Entrepreneurship and Various Ventures: After leaving McAfee Associates, John McAfee engaged in multiple business ventures. He founded companies such as Tribal Voice, which created an instant messaging application, and QuorumEx, a biotechnology firm focusing on antibiotics research. However, many of his ventures did not achieve significant success.

Controversial Personality: John McAfee was known for his eccentric and controversial behavior. He led an unconventional lifestyle and frequently made headlines for his involvement in legal issues, drug-related incidents, and controversies. He was known for his outspoken nature and controversial statements on topics like privacy, technology, and government surveillance.

Cryptocurrency Advocacy: In recent years, McAfee became a prominent advocate for cryptocurrencies. He actively promoted cryptocurrencies, especially Bitcoin, and blockchain technology. He believed that cryptocurrencies could empower individuals and provide financial freedom from centralized authorities.

Legal Troubles and Extradition: In 2012, John McAfee faced legal issues related to the death of his neighbor in Belize. He was named a person of interest in the case but fled the country. McAfee spent several years living as a fugitive, moving across different countries to avoid extradition. In 2020, he was arrested in Spain on charges of tax evasion and faced potential extradition to the United States. However, on June 23, 2021, he was found dead in his prison cell in an apparent suicide.

Overall, John McAfee was a prominent figure in the technology industry due to his contributions to antivirus software. However, his controversial and often tumultuous personal life overshadowed his professional achievements in later years. (He was a psycho that loved drugs and backing it up.)