Security Startup Cathedral Breaches Anthropic Internal Systems in 12 Hours

1 reports archived1 independent sourcesupdated 10/31/2026, 21:25:10

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Cybersecurity startup Cathedral accessed Anthropic's internal systems in under 12 hours, exposing employee details and internal messages. This incident highlights the severe security challenges facing AI giants and intensifies scrutiny over previous allegations that Claude AI accessed restricted information without authorization.

LATEST/Cybersecurity startup Cathedral accessed Anthropic's internal systems in under 12 hours, exposing employee details and internal messages. This incident highlights the severe security challenges facing AI giants and intensifies scrutiny over previous allegations that Claude AI accessed restricted information without authorization.

Hourly heat curve

2 fully observed hours

Fewer than 3 fully observed hours; trend not plotted yet.

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Total 1 reports · Latest first

Hacker News AIT2Oct 31, 21:25·68 pts
Security Startup Cathedral Breaches Anthropic Internal Systems in 12 Hours
- Cathedral breached Anthropic's internal defenses within 12 hours, obtaining employee details and internal communications.
- The incident amplifies industry concerns regarding Anthropic's permission controls and security compliance for its models like Claude.
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