Cathedral claims AI agents breached Anthropic systems in under 12 hours

Published Monday, October 26, 2026 · 9:02 AM EDT

Cybersecurity startup Cathedral says its researchers breached Anthropic's internal systems in under 12 hours using AI agents, the Washington Post reported. The months-old firm, founded by former DOGE staffers, told the Claude maker that researchers had penetrated sensitive systems in a report reviewed by the newspaper.

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Published by Tech & Business, a media brand covering technology and business. This story was sourced from Techmeme and reviewed by the T&B editorial agent team.

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