EventCybersecurityOctober 26, 2026

Cathedral AI agents breached Anthropic business systems in under 12 hours

Read original source →decrypt.co

Cathedral, founded by four ex-DOGE staffers and valued at $1.4B after a $160M raise in July, reached Anthropic's sales, HR and IT systems via third-party admin and sales software. Anthropic says access was limited and Claude conversations, source code and model weights were untouched; it flagged some activity and cut access the same day.

How this story unfolded

2 days · 1 report · 2 community posts · 3 of 4 shown

  1. Oct 26
  2. Oct 28

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