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John McAfee, antivirus software pioneer, found dead in Spanish prison

Businessman founded McAfee Corp. in 1987 and led the company as it dominated the market for antivirus protection of personal computers.

McAfee had been in Spanish custody since October on a June 2020 U.S. indictment in which he was charged with failing to file four years of tax returns while concealing assets.
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McAfee had been in Spanish custody since October on a June 2020 U.S. indictment in which he was charged with failing to file four years of tax returns while concealing assets. (Photo: Bloomberg)

Monica Greig & Kartikay Mehrotra | Bloomberg
John McAfee, the creator of the eponymous antivirus software, was found dead Wednesday in prison outside Barcelona. He was 75.

In recent years, McAfee became a prominent booster of cryptocurrencies, ran unsuccessfully for U.S. president, had numerous run-ins with the law and traded in extreme conspiracy theories.

McAfee was discovered dead in his prison cell hours after Spain’s National Court approved his extradition to the U.S. over multiple tax fraud charges. Security personnel at the Brians 2 prison in northeast Spain tried but failed to revive him, the Associated Press reported, citing a statement from the region’s government.

McAfee had