Microsoft Adds Guardian Agents to Project Perception for AI Insider Risk

Microsoft on October 19, 2026, announced new security capabilities in Project Perception and Microsoft 365 E7 that treat enterprise AI agents as potential insider threats, introducing Guardian Agents that supervise agent actions continuously and policy controls that adjust what each agent is allowed to do as its risk changes. Nadim Abdo, corporate vice president for identity and network access at Microsoft, wrote that AI agents are taking on a growing share of everyday work and often need access to company data, applications, tools, and other agents to be useful.

The same access that makes agents useful also creates insider risk, he wrote: agents can be manipulated, make mistakes, or be compromised, and they can run continuously at machine speed. Abdo said Microsoft is extending Project Perception, introduced in July 2026 with teams of red, blue, and green agents to defend against AI-driven attacks from outside the enterprise, to secure the agents now running inside it.

Project Perception and Microsoft Agent 365 share signals, context, and a unified registry so IT and security teams see the same picture of agents and…