Cathedral claims its AI agent breached Anthropic internal systems within 12 hours
10/26/2026 — 10/26, 20:18·1 sources (all)·1 reports (all)
Key takeaways
- Cybersecurity startup Cathedral, founded by former DOGE members, stated that its researchers used an AI agent to successfully breach Anthrop…
Background & analysis
According to a Washington Post report (flagged by Techmeme on 2026-10-26 at 19:35 UTC), a months-old cybersecurity startup called Cathedral says its researchers breached Anthropic's internal systems in under 12 hours using AI agents. The Post reviewed a report showing that Cathedral has told the makers of the Claude chatbot that its researchers were able to quickly penetrate sensitive systems at Anthropic. Cathedral was founded by former DOGE staffers. As of the report's publication, Anthropic had not publicly responded to the security incident. No further details on the scope of the breach or Anthropic's reaction were included in the available reporting.
AI-generated from 1 reports · updated 22 minutes ago
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According to The Washington Post, cybersecurity startup Cathedral claims its researchers used AI agents to breach Anthropic's internal systems in under 12 hours. Anthropic has not yet publicly responded to the report.
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