Hackers Breach Meta GitHub Repositories, Steal Source Code and Data of 1,500 People

Hackers used an employee’s stolen credentials to access some of Meta’s GitHub repositories, taking product source code and personal information linked to roughly 1,500 people. Most affected individuals are Meta employees in the United States, according to the company’s disclosure to SecurityWeek. Meta confirmed the breach on October 13, 2026, when it began notifying affected people. The company said it detected the intrusion several weeks earlier, blocked the attackers’ access, and brought in GitHub and law enforcement to support its response. Stolen Credentials Opened Repository Access Meta said attackers entered through stolen employee credentials, not a flaw in a Meta product. The company also said its internal systems...

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