John McAfee: Bitcoin, Crypto & Charges

John McAfee remains one of the most controversial figures in crypto, even since his passing. Learn about John McAfee's Bitcoin and crypto projects in our guide.

Who was John McAfee?

John David McAfee was a British-American software pioneer best known for founding the cybersecurity company McAfee Corp. in the late 1980s. His antivirus software became a household name during the early days of the internet, but McAfee's life quickly evolved into something far more chaotic than corporate success.

After selling his stake in the company, McAfee embarked on a wild and often bizarre journey that involved drugs, politics, guns, and, eventually, cryptocurrency.

McAfee's crypto crusade

McAfee emerged as a vocal proponent of cryptocurrency in the mid-2010s, particularly Bitcoin, Ethereum, and a range of altcoins. He took to X, where he had millions of followers, to issue bold predictions and endorse projects, often sending small tokens skyrocketing overnight. Some of his most memorable contributions and actions in the crypto space include:

Bitcoin Predictions: McAfee infamously predicted in 2017 that Bitcoin would hit $500,000 by the end of 2020, and later doubled down, claiming it would reach $1 million. He promised to perform a bizarre act on live television if proven wrong, a stunt that became a meme in the crypto community. By 2020, he dismissed his own prediction as a joke that people took too seriously.
Altcoin Endorsements: Through his so-called “Coin of the Day” and “Coin of the Week” tweets, McAfee heavily promoted smaller cryptocurrencies. It was later revealed that many of these promotions were paid endorsements, with some allegedly costing up to $100,000 per tweet.
McAfeeDEX and Ghost Coin: McAfee tried to launch several crypto ventures of his own. In 2019, he introduced McAfeeDEX, a decentralized exchange. He also championed Ghost, a privacy-focused cryptocurrency he claimed would allow untraceable transactions. Ghost received a lukewarm response, and McAfee later distanced himself from it after internal disputes.

Legal issues and criminal charges

McAfee's crypto activities eventually caught the attention of regulators. In 2020, he was indicted in the United States for tax evasion. The Department of Justice alleged he failed to file tax returns for several years, despite earning millions through consulting work, speaking engagements, and promoting cryptocurrencies.

Simultaneously, the SEC charged McAfee with fraudulently promoting Initial Coin Offerings (ICOs) without disclosing that he had been paid to do so. He was accused of participating in pump-and-dump schemes and misleading his followers.

McAfee was arrested in Spain in October 2020 at the request of U.S. authorities. While awaiting extradition to the United States, he remained active on social media, continuing to speak about crypto, government overreach, and his disdain for authority.

Death and conspiracy theories

On June 23, 2021, John McAfee was found dead in a Spanish prison cell. Authorities ruled it a suicide by hanging, just hours after a court approved his extradition to the U.S. However, the circumstances surrounding his death quickly became the subject of conspiracy theories.

McAfee had repeatedly stated that he would never take his own life. In 2019, he tweeted that if he were found dead by suicide, it wouldn’t be true, and even posted a photo of a tattoo on his arm that read “$WHACKD,” a reference to his belief that he might be killed by government agents. The same term was later used in a crypto token he promoted.

His wife, Janice McAfee, and others close to him have continued to challenge the official story, citing the lack of transparency from Spanish authorities and inconsistencies in the timeline of his death. To this day, some believe McAfee faked his death or was silenced for what he knew.

John McAfee’s legacy on crypto

John McAfee’s legacy is both influential and deeply polarizing. He was among the earliest and loudest mainstream voices to push cryptocurrency into the public spotlight. His advocacy brought attention to the ideals of privacy, decentralization, and government distrust; values that remain central to crypto culture.

Yet, his story is also a cautionary tale. The blurred lines between influence, manipulation, and legality in crypto promotion continue to be a regulatory battleground. McAfee’s life embodied both the promise and the chaos of crypto’s early years.

Don’t forget your tax bill…

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