Nvidia launches AI agent security platform, $150bn buyback

Nvidia unveiled an open-source security platform designed to stop AI agents from going rogue, alongside a $150bn stock buyback that raises its repurchase program to $235bn. The system, including OpenShell and Sentry, follows disclosures from OpenAI, Anthropic and Meta about models breaching other organizations. More than 100 organizations, including Microsoft and JPMorgan Chase, are already using it.