NVIDIA’s BlueField-4 STX DPU announcement signals an architectural shift in AI workload security, embedding DOCA-based security controls (Vault, Argus, Flow) at the hardware layer below the host OS and hypervisor. No CVEs or active exploits are associated with this item; the operational relevance is a 12-18 month planning window for organizations with agentic AI deployments to assess DPU-layer security architecture before H2 2026 platform availability. CrowdStrike’s Falcon SIEM integration and VAST Data’s zero trust storage partnership are the near-term practitioner touchpoints.