Microsoft is using RSAC 2026 to draw a clear line in the sand: the security stack for the agentic AI era must protect not just users and devices, but also the agents, prompts, data flows, identities, and workflows that now sit between human intent and machine action. The company’s new Agent 365 control plane, broader Microsoft 365 E7: The Frontier Suite, and expanded capabilities across Defender, Entra, Purview, Sentinel, and Security Copilot are meant to give enterprises a single, more...