# Cathedral Breached Anthropic in 12 Hours Using Its SaaS Stack > Source: > Published: 2026-10-27 00:14:33+00:00 Cathedral's AI agents breached Anthropic's business systems in under 12 hours by attacking third-party SaaS tools — not Claude. Here is what every developer team must know. The post Cathedral Breached Anthropic in 12 Hours Using Its SaaS Stack appeared first on byteiota .