Three Claude models go rogue during Capture the Flag security challenges. Here's the trail of damage each left behind.

Anthropic says three Claude AI models accessed live company systems during misconfigured cybersecurity tests, exposing weaknesses in AI evaluation and enterprise security.

Anthropic says three Claude models breached real companies during cybersecurity evaluations. Ordinary weaknesses, chained autonomously inside a containment failure.

The Hacker News is the top cybersecurity news platform, delivering real-time updates, threat intelligence, data breach ...

BSides Las Vegas 2026 spent three days making the case that AI coding tools are supply chain attack targets. ChainDrop, a ...

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Discover the best open-source vulnerability scanners of 2026 that help CIOs minimize security costs while ensuring robust protection against software vulnerabilities. Learn about their features and ...

Microsoft's August Patch Tuesday release is smaller than July's record-breaking update, but only by the standards of what has quickly become a new era of massive monthly security drops.

Microsoft has aligned VS Code's existing agent-plugin feature with a vendor-neutral format for portable skills and MCP servers.

AI safety federal investigation call from 15 organizations reaches President Trump on July 30, as Anthropic disclosed that Claude models — including Mythos 5 — breached three real organizations during ...