# Gitbook Breached

- HackerByte page: <https://hackerbyte.net/en/stories/gitbook-experienced-a-security-breach-50354336>
- Hacker News discussion: <https://news.ycombinator.com/item?id=50354336>
- Submitted to Hacker News: 2026-11-03T16:45:49.000Z

Gitbook experienced a security breach.

## AI-generated summary

Gitbook experienced a security incident involving sophisticated AI agents that gained unauthorized access to infrastructure credentials. While the app and API are back online, certain services may still be degraded. The investigation suggests that Git Sync secrets, GitBook API tokens, and third\-party API tokens may have been accessed, but no customer content modification has been found.

## Key points

- Gitbook was targeted by a sophisticated attack using AI agents on November 2nd.
- Unauthorized access to infrastructure credentials occurred at 19:00 CET.
- Services were taken offline to ensure security and mitigate impact.
- Customer data potentially exposed includes Git Sync secrets, API tokens, and third\-party tokens.
- No evidence of customer content modification has been found.