Cyber Security· Important
NVIDIA launches Sentry, a hardware layer that watches and shuts down rogue AI agents
NVIDIA has detailed Sentry, a new security framework that sits outside an AI agent's reach, enforcing policy and watching behavior from a dedicated hardware trust domain on BlueField-4 DPUs. The idea is simple: even if an agent is compromised or goes off-script while using tools and credentials, Sentry keeps watching and can cut it off because it doesn't depend on the host OS the agent runs on. Two components do the work — DOCA Tower, a proxy that inspects and authorizes every agent network request, and DOCA Argus, which reads live memory to understand what's actually running. When something looks wrong, the system can quarantine the agent within milliseconds, without needing the agent or the host to cooperate.