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ReportedUpdated 3 Nov 2026

Meta GitHub repositories breach

Unauthorized accessData breach1 source
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What happened

Hackers gained access to Meta's GitHub repositories using an employee's stolen credentials, exposing the personal information of approximately 1,500 people, mostly Meta employees in the US.

Reported impact

An affected population has not been established in the accepted evidence.

Attack method
stolen credentials

Source evidence

1

Read the original reporting and statements. Multiple articles may rely on the same underlying source.

SecurityWeek01

Meta Says Hackers Took Code, Personal Data of 1,500 in GitHub Breach - SecurityWeek

Published 13 Oct 2026Retrieved 3 Nov 2026

Meta is notifying roughly 1,500 people, most of them employees in the US, that their personal information was impacted after hackers got into some of the company’s GitHub repositories

Attributed reporting

1 more excerpt
an outside group gained access to the repositories using an employee’s stolen credentials

Attributed reporting

Updates and corrections

  1. Revision 1

    Incident updated.