# AI agents hacked Anthropic, maker of arguably the most capable AI models for cyberdefense

> Source: <https://the-decoder.com/ai-agents-hacked-anthropic-maker-of-arguably-the-most-capable-ai-models-for-cyberdefense/>
> Published: 2026-10-28 10:56:24+00:00

Cybersecurity startup Cathedral used AI agents to break into Anthropic's internal systems through third-party software as part of a bug bounty program. Anthropic confirmed access to sales, HR, and IT data but disputes how deep the breach went. The incident shows how vulnerable even leading AI labs are through their external software dependencies.

The article [AI agents hacked Anthropic, maker of arguably the most capable AI models for cyberdefense](https://the-decoder.com/ai-agents-hacked-anthropic-maker-of-arguably-the-most-capable-ai-models-for-cyberdefense/) appeared first on [The Decoder](https://the-decoder.com).