After leaving McAfee Associates, he founded the companies Tribal Voice (makers of the PowWow chat program), QuorumEx, and Future Tense Central, among others, and was involved in leadership positions in the companies Everykey, MGT Capital Investments, and Luxcore, among others. McAfee's fortunes plummeted in the financial crisis of 2007–2008. He disavowed the company's continued use of his name in branding, a practice that has persisted in spite of a short-lived corporate rebrand attempt under Intel ownership. McAfee became the company's most vocal critic in later years, urging consumers to uninstall the company's anti-virus software, which he characterized as bloatware. He resigned in 1994 and sold his remaining stake in the company. In 1987, he wrote the first commercial anti-virus software, founding McAfee Associates to sell his creation.

John David McAfee ( / ˈ m æ k ə f iː/ MAK-ə-fee 18 September 1945 – 23 June 2021) was a British-American computer programmer, businessman, and two-time presidential candidate who unsuccessfully sought the Libertarian Party nomination for president of the United States in 2016 and in 2020.

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