GitBook AI Attack Exposes API Secrets, Triggers Urgent Security Response

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GitBook confirmed a security breach after attackers used AI to infiltrate its systems on November 2, forcing the company to take emergency action. The incident exposed API secrets, integration tokens, and user data through GitBook Assistant. GitBook blocked the attack, patched vulnerabilities, and revoked all personal API tokens before restoring services. Some features remain unstable. Customers are urged to rotate API keys, third-party credentials, and integration secrets. The AI + crypto news incident highlights the risks of AI-driven attacks in the tech and blockchain sectors.

GitBook has urged customers to rotate API keys and third-party credentials after attackers used AI agents to access its infrastructure. The November 2 breach prompted emergency security measures and temporary service disruptions.

The company disclosed the incident on November 3, warning that attackers potentially accessed integration tokens, Git Sync secrets, API tokens and visitor questions submitted through GitBook Assistant. However, its investigation found no evidence of content modifications.

GitBook Revokes Customer API Tokens After Breach

GitBook said attackers gained unauthorized access to infrastructure credentials at 19:00 CET on November 2. The company blocked the intrusion, closed the vulnerabilities and replaced affected credentials.

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It also revoked all customer personal API tokens before restoring its application, API and published documentation. However, some services may still experience performance issues.

GitBook advised customers to rotate third-party credentials, published integration secrets and existing API tokens. Users connecting through its MCP server must also authenticate again.

The incident follows a separate security warning from trade.xyz on November 2. The platform reported unauthorized activity affecting its GitBook documentation.

Trade.xyz restored its previous documentation version by 9:15 AM ET. However, it advised users against clicking documentation links during its investigation.

Blockaid also identified 12 compromised websites on October 31, including Flap, Kintsu and StonkFun, in a separate report of affected DeFi platforms.

Related: $108M Crypto Heist Exposes a Major Weakness in Exchange Security

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