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

**Published:** October 28, 2026
**Author:** Matthias Bastian
**Source:** The Decoder
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/ai-agents-hacked-anthropic-maker-of-arguably-the-most-capable-ai-models

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…

> From the original source: **The Decoder**
> [Read full article at The Decoder](https://the-decoder.com/ai-agents-hacked-anthropic-maker-of-arguably-the-most-capable-ai-models-for-cyberdefense/)

**Tags:** #Anthropic

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