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CybersecuritySecurity NewswireCybersecurity News

Whistleblower Accuses IBM, AT&T of Covering Up Breaches

By Jordyn Alger, Managing Editor
Gavel
Sasun Bughdaryan via Unsplash
June 8, 2026

As reported by Bloomberg, a recently unsealed lawsuit reveals a whistleblower has accused IBM and AT&T of covering up data breaches.

William Barlow, former vice president of threat intelligence for IBM, claims the company had knowledge of breaches impacting its core network but never disclosed them. The alleged breaches occurred between 2013 and 2016 and were conducted by Chinese hackers. Furthermore, at least two subsidiaries of the company were breached, but IBM also covered them up, according to the complaint. As AT&T runs the network on the company’s behalf, it is also involved in the complaint. 

Barlow claims that the company was “routinely hacked by foreign state actors and others” but the proper government agencies were not notified. 

IBM spokesperson Miki Carver told TechCrunch, “This complaint was filed six years ago, and the U.S. Department of Justice declined to intervene. IBM is confident that our actions followed the letter of the law.”

Barlow alleges that in 2017, Five Eyes alerted the company of the breach, prompting an internal investigation. The complaint states Chinese threat actor APT 10 may have breached the company’s network more than 56,000 times from 2013 to 2016. The company reportedly could not investigate further, as it did not keep logs of who accessed its network at what time — a standard security practice. The company then failed to alert any authorities. 

“The data breaches are so large and the Core Networks so poorly designed that neither IBM nor AT&T knows exactly what data was breached, who breached the data, where the data was breached, when the data was breached or whether any data was exfiltrated, altered and/or modified in any respect,” the complaint warns. 

KEYWORDS: Chinese hackers data breach data breach notification data breach response IBM nation-state security

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Jordynalger

Jordyn Alger is the managing editor for Security magazine. Alger writes for topics such as physical security and cyber security and publishes online news stories about leaders in the security industry. She is also responsible for multimedia content and social media posts. Alger graduated in 2021 with a BA in English – Specialization in Writing from the University of Michigan. Image courtesy of Alger

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