The agentic AI security stack is taking shape , fast. At GTC 2026, NVIDIA unveiled NemoClaw, an open-source stack that wraps OpenClaw with enterprise-grade privacy controls, local inference via Nemotron models, and the OpenShell sandboxed runtime. Days later at RSAC 2026, Cisco launched DefenseClaw, an open-source governance framework that scans every agent skill, MCP server, and plugin before admission , and enforces block/allow policies at runtime with sub-two-second enforcement.