• Home
  • News
  • Fortune 500
  • Tech
  • Finance
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechAshley Madison

John McAfee—namesake of the anti-virus software—thinks he knows who hacked Ashley Madison

Robert Hackett
By
Robert Hackett
Robert Hackett
Down Arrow Button Icon
Robert Hackett
By
Robert Hackett
Robert Hackett
Down Arrow Button Icon
August 24, 2015, 5:34 PM ET
MIAMI BEACH, FL - DECEMBER 13: John McAfee is sighted in South Beach on December 13, 2012 in Miami Beach, Florida. (Photo by Larry Marano/WireImage)
MIAMI BEACH, FL - DECEMBER 13: John McAfee is sighted in South Beach on December 13, 2012 in Miami Beach, Florida. (Photo by Larry Marano/WireImage)Photograph by Larry Marano — WireImage/Getty Images

“Ashley Madison was not hacked,” declares John McAfee, the cybersecurity entrepreneur known for his drug-dosing, gun-toting, murder accusation-dodging persona, in a post on the International Business Times. Rather, he says, the site was ransacked by an ex-employee. A female ex-employee.

“[T]he data was stolen by a woman operating on her own who worked for Avid Life Media,” he says, referencing the company that owns the extramarital affairs site AshleyMadison.com, which has been the subject a major security breach and severaldatadumps last week.

McAfee, namesake of the anti-virus software company picked up by Intel (INTC) in 2011, says he has pored over the 40 gigabytes of data released so far by the alleged Ashley Madison hacking group, which calls itself “Impact Team.” Analysis of the data has led him to draw three conclusions: 1. The hack was a solo affair, 2. The breach was perpetrated by an insider, and 3. A woman is behind it.

As evidence, McAfee cites research involving the “wording” of the leaker’s manifestos, the attacker’s “intimate knowledge of the technology stack of the company,” as well as his own expertise and “reliable sources within the Dark Web—which have yet to fail me.”

For evidence in support of the first claim—that the hack was a solo affair—you’ll have to read McAfee’s July IBTimes post to assess its validity. Okay, fine…here’s the spoiler: “I cannot tell you how I know, but the simple published data should help point to this fact.” In other words, you’ve got to take the man at his word.

As for his conclusion that the hack was perpetrated by an insider? Well, he says, the alleged hacker simply knew too much about the corporate IT network. Plus, the attacker gave herself away by calling out individual employees by name.

Lastly, why a woman? (Word of warning: This part of McAfee’s analysis may rub some people the wrong way.) He cites the attacker’s use of the word “scumbags” and her apparent predilection for Valentine’s Day as decidedly feminine. Really, he does.

“If this does not convince you then you need to get out of the house more often,” he says.

Of course, McAfee is a bit of a character in the cybersecurity world. Mm…okay, that’s an understatement. The man revels in his image as a loose canon libertine. He fled Belize in 2012 after being accused of murdering his neighbor. He has claimed to be the target of assassins. He has been arrested for driving while under the influence—and packing heat.

On the other hand, McAfee is also an established name in security, an innovator who made millions through his eponymous anti-virus software.

Nevertheless, a writer at Gizmodo has taken the opportunity to criticize McAfee’s Sherlock Holmesian forensics as “pretty subjective, not to mention offensive” as well as “obscenely sexist.”

Fortune will let you draw your own conclusions. Although we suspect McAfee’s contribution will not win him that $500,000 bounty. At least not yet.

About the Author
Robert Hackett
By Robert Hackett
Instagram iconLinkedIn iconTwitter icon
See full bioRight Arrow Button Icon

Latest in Tech

Anthropic co-founder and CEO Dario Amodei speaking at Fortune Brainstorm Tech 2023 in Park City, Utah. (Photo: Stuart Isett/Fortune)
NewslettersFortune Tech
Anthropic plows toward an IPO
By Andrew NuscaDecember 3, 2025
5 minutes ago
MagazineFood and drink
A Chinese ice cream chain, powered by super-cheap cones, now has more outlets than McDonald’s
By Theodora YuDecember 3, 2025
2 hours ago
InnovationBrainstorm Design
Video games can teach designers deeper lessons than ‘high score streaks’ and gamification
By Angelica AngDecember 3, 2025
5 hours ago
LawInternet
A Supreme Court decision could put your internet access at risk. Here’s who could be affected
By Dave Lozo and Morning BrewDecember 2, 2025
14 hours ago
AITikTok
China’s ByteDance could be forced to sell TikTok U.S., but its quiet lead in AI will help it survive—and maybe even thrive
By Nicholas GordonDecember 2, 2025
15 hours ago
United Nations
AIUnited Nations
UN warns about AI becoming another ‘Great Divergence’ between rich and poor countries like the Industrial Revolution
By Elaine Kurtenbach and The Associated PressDecember 2, 2025
16 hours ago

Most Popular

placeholder alt text
Economy
Ford workers told their CEO 'none of the young people want to work here.' So Jim Farley took a page out of the founder's playbook
By Sasha RogelbergNovember 28, 2025
5 days ago
placeholder alt text
Success
Warren Buffett used to give his family $10,000 each at Christmas—but when he saw how fast they were spending it, he started buying them shares instead
By Eleanor PringleDecember 2, 2025
1 day ago
placeholder alt text
Economy
Elon Musk says he warned Trump against tariffs, which U.S. manufacturers blame for a turn to more offshoring and diminishing American factory jobs
By Sasha RogelbergDecember 2, 2025
18 hours ago
placeholder alt text
North America
Jeff Bezos and Lauren Sánchez Bezos commit $102.5 million to organizations combating homelessness across the U.S.: ‘This is just the beginning’
By Sydney LakeDecember 2, 2025
20 hours ago
placeholder alt text
C-Suite
MacKenzie Scott's $19 billion donations have turned philanthropy on its head—why her style of giving actually works
By Sydney LakeDecember 2, 2025
1 day ago
placeholder alt text
North America
Anonymous $50 million donation helps cover the next 50 years of tuition for medical lab science students at University of Washington
By The Associated PressDecember 2, 2025
22 hours ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.