AGENTS.MD Becomes New AI Threat

When opened in a browser and accessed by AI tools like Claude Code or Codex, these files trigger automatic execution of malicious commands—such as disabling sandbox, installing harmful npm packages, and exposing API tokens. Attackers use realistic-looking 13KB configuration documents to bypass AI safeguards. Codex achieves over 90% success rate in such attacks, with persistent modifications to global config files. Users are advised to audit download folders, global settings, malicious dependencies, and proxy configurations.

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