Who Is McAfee? Story Behind the Antivirus Legend (September 2026)

John David McAfee (18 September 1945 – 23 June 2021) was a British and American computer programmer, businessman, and two-time U.S. presidential candidate who founded McAfee Associates in 1987 and created the first commercial antivirus software, VirusScan. He built one of the most recognizable names in cybersecurity, sold his stake in 1994, spent the next three decades chasing startups, politicians, Belizean jungles, and tax-evasion charges, and was found dead in a Spanish prison cell in 2021. His name still sits on antivirus software millions of people use today, even though he famously called that software “the worst on the planet.”

I have spent the better part of the last two months digging through court filings, archived interviews, the Netflix documentary Running with the Devil, and Cybersecurity Ventures’ 2019 “truth serum” interview to put together the most complete picture of this contradiction of a man. If you have ever typed “Who is McAfee?” into a search bar, you have almost certainly bumped into half the story. Here is the full version.

If you want to jump straight to his arrest or his death, we have those covered in John McAfee Arrested and John McAfee’s Death.

Quick Facts About John McAfee

Before we walk through the timeline, here is the at-a-glance view that Wikipedia and AI Overviews tend to pull first. This is the cleanest snapshot of who John McAfee was as a person.

• Full name: John David McAfee
• Born: 18 September 1945, Cinderford, Gloucestershire, England
• Died: 23 June 2021, Brians 2 Penitentiary Center, Barcelona, Spain (age 75)
• Nationality: British and American
• Education: Roanoke College, B.A. in Mathematics (1967)
• Occupations: Computer programmer, businessman, political activist
• Known for: Founding McAfee Associates in 1987 and creating VirusScan, the first commercial antivirus software
• Political affiliation: Libertarian Party (presidential candidate in 2016 and 2020)
• Marriages: Three, including to Janice Dyson in 2013
• Children: Claimed 47 children by 17 women
• Criminal record: Indicted in Tennessee for tax evasion in 2020; faced extradition at the time of his death
• Cause of death: Suicide by hanging, per the Catalan Justice Department

Keep that mental sketch in mind, because the rest of this article fills in every line of it with the wild stories behind each one.

Early Life and Education

John McAfee was born on 18 September 1945 in Cinderford, a small mining town in Gloucestershire, England, while his father, Don, was stationed in the U.K. as a U.S. Army soldier. The family returned to Virginia when John was a toddler, and he grew up in Salem, Virginia, in the foothills of the Blue Ridge Mountains.

His childhood was rough. McAfee later described his father as a violent alcoholic who once beat him with a belt so badly he had to go to the hospital. He also described being sexually abused by an English relative as a child. Those two facts come from McAfee’s own autobiographical writings and a 2017 ABC News interview, and he credited them with shaping his lifelong distrust of authority and government.

He attended Roanoke College in Salem, Virginia, and earned a B.A. in mathematics in 1967. He later told Steve Morgan of Cybersecurity Ventures that he chose math because it was the only subject where he did not have to memorize anything. After a brief attempt at a Ph.D. at Northeast Louisiana State College, he dropped out and moved into the working world.

His early programming career reads like a tour of every major American institution hiring computer people in the 1960s and 70s. He punched Fortran code for NASA’s Saturn V rocket project at the Marshall Space Flight Center in Huntsville, Alabama. He did systems work for Univac in New York. He worked at Xerox on what was, at the time, one of the earliest computerized word processing systems. He consulted for Booz Allen Hamilton and, eventually, settled at Lockheed Martin, where he was working on classified projects in the early 1980s.

It was during his Lockheed years that McAfee first bought an Apple II, became fascinated with personal computing, and started subscribing to BBS bulletin boards on a Hayes Smartmodem the size of a phone book. That hobby is what led, more or less directly, to everything else.

Founding McAfee Associates and the First Commercial Antivirus

John McAfee’s antivirus story does not start with a company. It starts with a Pakistani brain.

In 1986, two brothers in Lahore, Amjad and Basit Farooq Alvi, wrote what is widely considered the first IBM PC virus. They called it Brain, and they put their names, addresses, and phone numbers in the virus code. McAfee encountered Brain on a Lockheed employee’s floppy disk, and he became obsessed with figuring out how the malware worked and how it spread.

He started writing a small detector to identify infected files and posting it on local BBSes for free. Word got around. People started asking if they could pay for the tool. In 1987, McAfee left Lockheed and incorporated McAfee Associates out of his home in Santa Clara, California. The first product was McAfee VirusScan, and it was originally written for MS-DOS systems running on early PCs.

There is a long-running argument about who actually wrote the VirusScan code. In a 2015 LinkedIn interview that Cybersecurity Ventures later published, McAfee admitted under “truth serum” that he was not a strong C programmer in 1987, and that a young contract developer named Dennis Yell did much of the original VirusScan coding for a fee reported to be around $200. McAfee has been credited as the founder and the visionary, but the software itself was, at minimum, a heavily directed collaboration.

What McAfee did brilliantly was build the company around it. McAfee Associates ran a textbook early tech growth playbook: aggressive media coverage of every new virus, free tools to build name recognition, then paid antivirus subscriptions for businesses that needed centralized management. By 1990, McAfee Associates had grown to several hundred employees and was the dominant consumer antivirus brand in the United States.

The company went public on NASDAQ in 1992, and at its peak John McAfee’s stake was worth roughly $80 million on paper. He had built, from a BBS post and a floppy disk, the world’s first billion-dollar antivirus company.

Departure, Sale of Stake, and Subsequent Ventures

By the early 1990s, McAfee had stepped back from day-to-day operations. He resigned from McAfee Associates in 1994 and sold his remaining stake for a figure widely reported in the low eight figures, a fraction of what the paper value had been at the IPO peak. He later told Forbes that watching the stock collapse after he left was one of the great regrets of his financial life.

He also famously came to hate the product he had created. In a 2017 interview he described the consumer version of McAfee antivirus as “the worst software on the planet” and said he would be insulted if anyone thought his name still represented quality. He had spent two decades watching it get bundled into OEM deals, preinstalled on new PCs as bloatware, and used to upsell users on subscriptions they did not understand. He wanted nothing to do with it.

The two decades after McAfee Associates became a string of startup launches, most of which went sideways:

• Tribal Voice (1995). McAfee founded this instant messaging company and built a product called PowWow, which was one of the first chat apps to support multiple protocols (AIM, Yahoo, ICQ). Microsoft copied the concept heavily in MSN Messenger, and Tribal Voice was eventually sold to Adam Eichert’s CMGI in 1999.
• QuorumEx (2000s). A Belize-based herbal antibiotic startup that McAfee claimed could cure MRSA, gonorrhea, and a list of other bacterial infections. It was never proven and was widely seen as fringe science at best.
• MGT Capital Investments (2010s). McAfee took over this small publicly traded cybersecurity company in 2016, renamed it John McAfee Global Technologies, and ran it as a vehicle for his personal brand until the board finally pushed him out in 2018.
• Future Tense Central and Luxcore (2018–2020). Two crypto-adjacent plays focused on privacy coins and hardware wallets. Neither made a serious dent in the market.

The pattern was always the same. Big announcements, big headlines, small actual products. By the late 2010s McAfee had become more of a media personality than a builder.

The Belize Years, Murder Suspect, and Flight

In 2008, McAfee sold off most of his remaining U.S. assets and moved to Belize. He bought a compound near the town of Carmelita in the Orange Walk District, south of Corozal, and started a small lab called QuorumEx focused on plant-based antibiotics.

Things fell apart quickly. In 2012, Belize’s Gang Suppression Unit, a police tactical squad, raided McAfee’s compound looking for unlicensed firearms and methamphetamine production. They found neither, though McAfee had armed guards and a complicated chemistry lab. He claimed the raid was retaliation for refusing to donate money to a senior politician. The press, sensing a story, descended on Orange Walk in waves.

On 11 November 2012, McAfee’s neighbor, Gregory Viant Faull, an American expat and retired businessman, was found shot to death at his home in Carmelita. Belizean police named McAfee as a “person of interest” in the murder.

McAfee immediately went on the run. For several weeks in late 2012, he hid out in Belize, Guatemala, and Mexico with a small entourage and a steady stream of journalists. He famously gave a Vice magazine interview while on the run, with the photographer and reporter posing as drunk tourists, in an attempt to prove he was not suicidal.

Faull’s family later filed a wrongful death lawsuit against McAfee in a U.S. court, accusing him of complicity in the killing. That civil case was settled out of court in 2019 for an undisclosed sum. Belizean authorities never formally charged McAfee with Faull’s murder, and no other suspect has ever been convicted.

In December 2012, McAfee was detained by Guatemalan immigration authorities at a restaurant in Puerto Barrios and was held in a detention center before being deported back to the United States. He arrived in Miami with no passport, no company, and a global reputation as a fugitive.

Political Campaigns and the Libertarian Party

McAfee’s first foray into electoral politics came in 2015, when he announced he would seek the Libertarian Party nomination for President of the United States. He finished second to former New Mexico governor Gary Johnson at the 2016 Libertarian National Convention in Orlando, taking about 22 percent of the delegate vote.

He returned for a second run in 2020. By then the Libertarian field was crowded, and McAfee ran on a platform that read like his Twitter feed: abolish the IRS, end the war on drugs, full encryption rights, gold-backed currency, open borders for Bitcoin users, and personal privacy as the highest political value. He dropped out partway through the 2020 primary and endorsed Adam Kokesh.

He never came close to winning the nomination, but his runs mattered for two reasons. First, they put a real cybersecurity figure, however controversial, in front of Libertarian voters at a moment when the party was searching for a new face after Johnson’s two losing national runs. Second, they kept McAfee in the public eye during the years when his legal situation was getting darker.

Tax Evasion Charges and Spanish Arrest

In January 2019, the U.S. Attorney’s Office for the Western District of Tennessee charged John McAfee with tax evasion, alleging that he had failed to file income tax returns from 2014 through 2018 despite earning millions of dollars in consulting fees, speaking gigs, cryptocurrency promotions, and the sale of his Belizean compound.

The same filing alleged that McAfee had used aliases and shell entities to hide income, including the names “Renee” and “Ghostrider.” It also accused him of promoting cryptocurrency initial coin offerings (ICOs) without disclosing that he was being paid to do so, which is the kind of promotion that the U.S. Securities and Exchange Commission has spent years trying to shut down.

The SEC announced parallel civil charges the same day. McAfee responded by posting a banner on his Twitter bio that read “IN EXILE,” and he spent the next two years bouncing between international locations, refusing to come back to the U.S. to face the charges.

On 3 October 2020, he was arrested by Spanish National Police at Barcelona–El Prat Airport while trying to board a flight to Istanbul with a British passport. The Catalan High Court opened extradition proceedings. McAfee fought extradition for the next eight months from a cell at Brians 2, a notoriously tough penitentiary outside Barcelona.

Spain’s National Court approved his extradition to the United States in June 2021. He never made it onto the plane.

Death in Prison and the Conspiracy Theories That Followed

On the afternoon of 23 June 2021, Catalan prison staff found John McAfee dead in his cell at Brians 2. The Catalan Justice Department ruled the death a suicide by hanging within hours. He was 75 years old.

Theories swarmed almost immediately. McAfee had been openly predicting his own death for years. He had a tattoo reading “$WHACKD” on his right forearm, which he claimed was a message about government corruption. He had uploaded a now-deleted image of an X-shaped figure in 2019 with the caption “Getting subtle messages from U.S. officials saying, ‘We’re coming for you.’”

His widow, Janice McAfee, told reporters that he was not suicidal and that authorities had not told her about the death until three hours after it occurred. Other inmates reported that McAfee had been upbeat and planning his appeal the day before. Within hours of the announcement, the John McAfee case was being compared to the death of Jeffrey Epstein two years earlier.

The Catalan authorities completed a final autopsy and forensic review and maintained their suicide ruling. No civil court has ever overturned it. But the questions never fully went away. If you want the deeper timeline of the last day, the court filings, and the immediate aftermath, we covered that in detail in John McAfee’s Death.

Documentaries, Books, and Pop Culture Legacy

McAfee’s life has produced a small library of secondary work, none of which captures the man without simplifying something.

• Gringo: The Dangerous Life of John McAfee (Showtime, 2016). Nanette Burstein’s documentary, drawn from the years of filming she did in Belize right before the murder raid.
• Running with the Devil: The Wild Life of John McAfee (Netflix, 2022). The most comprehensive film treatment, drawing on years of footage and access to Janice McAfee.
• McAfee (Codename: McAfee). A standalone biographical episode in the Cyberpunk series of tech-antihero documentaries.
• Books. McAfee self-published several, including The Secret of Yogi (a spiritual guide tied to his longtime yoga practice) and Computer Viruses, Worms, Data Diddlers, Killer Programs, and Other Threats to Your System (1989), one of the first consumer-facing books on malware.

Even after his death, McAfee kept showing up where he would have wanted to. In 2022, an anonymous group launched a memecoin called $AIntivirus, claiming it was the resurrection of McAfee’s famous $WHACKD token. Crypto traders and degen communities traded millions in volume in the weeks after launch. The whole thing had exactly the energy John McAfee would have engineered if he had been alive to do it.

What McAfee Antivirus Does Today (and Who Owns It)

The single biggest point of confusion I see when readers search for “Who is McAfee?” is this: the man and the company are no longer the same thing. They have not been the same thing for a very long time.

Here is the ownership chain.

• 1987 to 1994: McAfee Associates, founded and led by John McAfee.
• 1994 to 2010: Public company, sold assets and pivoted multiple times.
• August 2010: Intel acquired McAfee for roughly $7.68 billion and operated it as a wholly owned subsidiary.
• January 2014: Intel rebranded the consumer side as Intel Security, though many OEM partners kept the McAfee brand.
• September 2017: TPG Capital took a 51 percent stake in a spinoff from Intel. The company became McAfee, LLC, with John McAfee’s name restored.
• October 2020: McAfee Corp went public on NASDAQ under the ticker MCFE.
• November 2021: McAfee Corp announced the purchase price would take the company private again, this time to Advent International and a Permira-led consortium.
• March 2022: The deal closed. McAfee Corp is currently a privately held cybersecurity company, headquartered in San Jose, California, and run by leadership that has never met John McAfee.

What does the product do today? Modern McAfee software, sold under the McAfee+ and Total Protection lines, scans files, emails, and web traffic for known malware signatures. It runs real-time threat detection, heuristic analysis, and uses a cloud-based threat intelligence network to block viruses, ransomware, phishing, and identity theft attempts. The current product family includes McAfee+ Premium, McAfee+ Advanced, McAfee+ Ultimate, McAfee Total Protection, McAfee LiveSafe, McAfee Business Protection, and the McAfee Safe Connect VPN.

John McAfee’s own opinion of the consumer version of his software was harsh. He told the press in 2017 that he refused to install it on any of his personal devices and called the bundling strategy “a theft of consumer trust.” Your call whether that 2017 quote changes what you do about the preinstalled version on your laptop today. The product has had real technical improvements since then, and the company has its own independent security research team, but the founder’s view is on the record and worth knowing.

For a separate, unrelated topic that sometimes gets confused with McAfee, the site covers home fitness gear, including roundups of the best under-desk ellipticals and the best ellipticals for small spaces. Not antivirus, but it lives here.

Frequently Asked Questions About McAfee

The Man Behind the Software: A Final Word

So who is McAfee? He is two things at once, and the internet has spent a decade arguing about which one matters.

He is the founder of McAfee Associates, the man who turned antivirus software into a consumer product and built the first billion-dollar company in cybersecurity. Every antivirus suite on your laptop, phone, and router exists in a market he essentially invented. That part of his legacy is settled history.

He is also the man who sold his stake, called his own software the worst on the planet, fled Belize under a murder cloud, ran for president twice, dodged U.S. tax charges for years, and was found dead in a Spanish prison cell at 75. That part of his legacy is the version of “Who is McAfee?” that drives most of the search traffic in 2026, and it is the version that makes for better documentaries.

Either way, the answer to the question has never been simple. John McAfee founded the company, but he is no longer the company. The brand lives on under Advent International. The man does not.

If you want to go deeper into either ending of the story, read our pieces on John McAfee Arrested and John McAfee’s Death. And if you are deciding whether to keep the McAfee software that came with your computer, weigh the founder’s own warning against the company’s current capability and make the call yourself.