---
title: "Data breach at Meta"
description: "On 13 October 2026, Meta stated that attackers had accessed several code repositories hosted on GitHub using an employee's stolen credentials. The intrusion had been detected several weeks earlier. According to the company, 99% of the copied data is source code; the remainder includes personal data "
canonical: https://inyourgeek.com/en/fuites-de-donnees/2026-10-13-meta
type: fuite-de-donnees
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-13
dateModified: 2026-10-13
---
# Meta

Data breach — Low

On 13 October 2026, Meta stated that attackers had accessed several code repositories hosted on GitHub using an employee's stolen credentials. The intrusion had been detected several weeks earlier. According to the company, 99% of the copied data is source code; the remainder includes personal data of about 1,500 people, mostly US-based Meta employees, which had been placed in these repositories by mistake, against internal policy. The exact nature of this data was not specified, and Meta says a significant share consists of synthetic or anonymised test data. Meta states that its internal systems were not compromised.

As the nature of the personal data has not been specified, the exact exposure for the people concerned remains undetermined.

| Fact | Value |
| --- | --- |
| Disclosed on | October 13, 2026 |
| Accounts affected | 1,500 |
| Sector | Digital services |
| Country | United States |
| Cause | Credential stuffing |
| Severity | Low |
| Status | Confirmed |

## Exposed data

- Other personal data

## What you can do

- You can ask the organisation exactly what was exposed about you (right of access), and complain to the DPA if no answer comes within a month.

## Sources

- [Meta confirme une cyberattaque : du code source volé et 1 500 employés exposés](https://www.cyberattaque.org/meta-confirme-une-cyberattaque-du-code-source-vole-et-1-500-personnes-exposees/) — Cyberattaque.org
- [Meta Says Hackers Took Code, Personal Data of 1,500 in GitHub Breach](https://www.securityweek.com/meta-says-hackers-took-code-personal-data-of-1500-in-github-breach/) — SecurityWeek
- [Meta Security Breach Exposes Corporate Code, Employee Data on GitHub](https://securityboulevard.com/2026/10/meta-security-breach-exposes-corporate-code-employee-data-on-github/) — Security Boulevard
- [Meta GitHub Breach: Hackers Steal Code, Data of 1,500](https://www.cyberkendra.com/2026/10/meta-github-breach-source-code-1500-employees.html) — Cyber Kendra

_Entry built from the cited sources after a corroboration check, then reviewed before publication._

---

Equivalent HTML page : https://inyourgeek.com/en/fuites-de-donnees/2026-10-13-meta
Published by InYourGeek — https://inyourgeek.com/en/a-propos
Method and safeguards : https://inyourgeek.com/en/methode
Full register : https://inyourgeek.com/en/fuites-de-donnees