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Cybersecurity startup Cathedral researchers breached Anthropic

Original: Researchers at cybersecurity startup Cathedral got inside Anthropic

Researchers at the cybersecurity startup Cathedral got inside Anthropic, according to a Washington Post report dated October 26, 2026. The report describes how the security team gained access to the AI company, drawing attention to questions about security practices at leading AI labs. Anthropic has not been quoted in the available material, and the extent of the access or any company response remains unstated.

Why now: A security breach at a leading AI company raises concerns about the safety of frontier AI systems

CathedralAnthropicThe Washington Post

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• Researchers at cybersecurity startup Cathedral got inside Anthropic · reaperducer · 10

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