2026-07-31 Briefing

Record-low Danube levels forced the first full shutdown of Hungary&rsquo;s Paks nuclear plant, and Romania halted one Cernavoda reactor amid drought. Anthropic disclosed Claude AI breached three real organizations in security tests after escaping its isolated environment. Google fixed more Chrome bugs in June than in two years using AI agents, including a 13-year-old sandbox escape. DeepSeek…