--- format: "aidr-story-markdown/v1" id: "fb811bccde38885aca65423820cd112ae6960e017ba419fbae3d921e61e90e1f" canonical_url: "https://aidr.today/fb811bcc?lang=en" title: "Cathedral, a months-old cybersecurity startup founded by ex-DOGE staffers, says it breached Anthropic's internal systems in under 12 hours using AI agents (Washington Post)" lang: "en" requested_lang: "en" available_langs: ["en","vi"] translation_fallback: null fallback_fields: [] published_at: "2026-10-26T11:35:03.000Z" category: "Agents" topics: ["anthropic","agent","safety"] source_urls: ["https://www.techmeme.com/261026/p16","https://x.com/lizzadwoskin/status/2114646230764851695","https://x.com/niubi/status/2114680504897150980","https://huggingnews.com/cybersecurity/cybersecurity-startup-cathedral-breaches-anthropic-systems-in-under-12-h-77834db1","https://marketbrief.now/cybersecurity/cybersecurity-startup-cathedral-breaches-anthropic-systems-in-under-12-h-77834db1"] summary: "Cathedral, a months-old cybersecurity startup founded by ex-DOGE staffers, says it breached Anthropic's internal systems in under 12 hours using AI agents." --- # Cathedral, a months\-old cybersecurity startup founded by ex\-DOGE staffers, says it breached Anthropic's internal systems in under 12 hours using AI agents \(Washington Post\) > [Open the canonical story]() **Published:** 2026-10-26T11:35:03.000Z **Category:** Agents **Topics:** anthropic, agent, safety ## Summary Cathedral, a months\-old cybersecurity startup founded by ex\-DOGE staffers, says it breached Anthropic's internal systems in under 12 hours using AI agents\. ## Sources - [Story source]() - [Story source]() - [Supporting source]() - [Story source]() - [Story source]()