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

Researcher claims he’s found the Ashley Madison hacker

By
Benjamin Snyder
Benjamin Snyder
Managing Editor
Down Arrow Button Icon
By
Benjamin Snyder
Benjamin Snyder
Managing Editor
Down Arrow Button Icon
August 27, 2015, 10:52 AM ET
The Ashley Madison website.
The Ashley Madison website.Photograph by Carl Court—Getty Images

The Ashley Madison hack, which posted the information over 32 million accounts, may have been performed by the Twitter user with the name “Thadeus Zu,” according to a security researcher.

Brian Krebs, the researcher, pointed to the account’s owner based on past postings to the social media side and other Twitter information that led him to believe he’s part of the “Impact Team” responsible for the attack. But Thadeus Zu has spoken out against the accusations, tweeting, “They’re eyeballing the wrong dude here, man,” according to the publication.

Krebs has targeted Zu for numerous reasons, including citing information that Zu has hacked government sites in the past and has played AC/DC songs once the hack was completed. The Ashley Madison hack, meanwhile, had the song “Thunderstruck” played from the company’s computers.

Per the Independent:

He also appeared to tweet links to the huge data dumps from the hacks, before they were picked up by the mainstream media, according to Krebs. Krebs said his initial interest in the account had come about because it posted a link to Ashley Madison source data soon after it was released.

“Thadeus Zu — whoever and wherever he is in real life — may not have been directly involved in the Ashley Madison hack; he claims in several tweets that he was not part of the hack, but then in countless tweets he uses the royal “We” when discussing the actions and motivations of the Impact Team,” according to Krebs.

“But one thing is clear: If Zu wasn’t involved in the hack, he almost certainly knows who was,” added Krebs.

About the Author
By Benjamin SnyderManaging Editor
LinkedIn iconTwitter icon

Benjamin Snyder is Fortune's managing editor, leading operations for the newsroom.

Prior to rejoining Fortune, he was a managing editor at Business Insider and has worked as an editor for Bloomberg, LinkedIn and CNBC, covering leadership stories, sports business, careers and business news. He started his career as a breaking news reporter at Fortune in 2014.

See full bioRight Arrow Button Icon

Latest in Tech

InnovationVenture Capital
This Khosla Ventures-backed startup is using AI to personalize cancer care
By Allie GarfinkleDecember 4, 2025
58 minutes ago
AIEye on AI
Companies are increasingly falling victim to AI impersonation scams. This startup just raised $28M to stop deepfakes in real time
By Sharon GoldmanDecember 4, 2025
1 hour ago
Jensen Huang
SuccessBillionaires
Nvidia CEO Jensen Huang admits he works 7 days a week, including holidays, in a constant ‘state of anxiety’ out of fear of going bankrupt
By Jessica CoacciDecember 4, 2025
2 hours ago
Ted Pick
BankingData centers
Morgan Stanley considers offloading some of its data-center exposure
By Esteban Duarte, Paula Seligson, Davide Scigliuzzo and BloombergDecember 4, 2025
2 hours ago
Zuckerberg
EnergyMeta
Meta’s Zuckerberg plans deep cuts for Metaverse efforts
By Kurt Wagner and BloombergDecember 4, 2025
2 hours ago
Pichai
Big TechAlphabet
Alphabet’s AI chips are a potential $900 billion ‘secret sauce’
By Ryan Vlastelica and BloombergDecember 4, 2025
2 hours ago

Most Popular

placeholder alt text
Economy
Two months into the new fiscal year and the U.S. government is already spending more than $10 billion a week servicing national debt
By Eleanor PringleDecember 4, 2025
7 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
2 days ago
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
6 days 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
2 days ago
placeholder alt text
Economy
Scott Bessent calls the Giving Pledge well-intentioned but ‘very amorphous,’ growing from ‘a panic among the billionaire class’
By Nick LichtenbergDecember 3, 2025
1 day ago
placeholder alt text
AI
IBM CEO warns there’s ‘no way’ hyperscalers like Google and Amazon will be able to turn a profit at the rate of their data center spending
By Marco Quiroz-GutierrezDecember 3, 2025
1 day 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.