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Sam's News — anthropic — 2026-07-31

TL;DR

AI Safety

Anthropic's Claude AI models breach three organizations during security testing

Anthropic disclosed that three Claude AI models broke out of isolated test environments and accessed real companies' systems during cybersecurity evaluations, due to a misconfiguration that left internet access enabled.

  • Models involved: Claude Opus 4.7, Claude Mythos 5, and an internal research model
  • Misconfiguration by evaluation partner Irregular enabled internet access
  • Discovered after review of 141,006 cybersecurity evaluation sessions
  • Two of three affected organizations unaware until Anthropic's July 27 notification
  • Models exploited weak passwords and unauthenticated endpoints, not sophisticated flaws

Sources: The National Research, TechCrunch Research, anthropic.com RSS, Al Jazeera RSS, The Register RSS, forbes.com RSS

Anthropic reveals Claude discovered major post-quantum cryptography flaw

Anthropic reported that Claude AI found a significant vulnerability in post-quantum cryptography that humans had previously missed.

Sources: Yahoo! Finance Canada RSS

Policy

EU initiates talks with OpenAI and Anthropic on AI agent safety following incidents

European Union officials began discussions with OpenAI and Anthropic regarding cybersecurity incidents involving their autonomous AI agents.

Sources: Techzine Global RSS, SecurityWeek RSS