By Laurie Sullivan
Publication Date: 2026-10-19 18:11:00
Microsoft is building a tool, “Guardian Agents,” to monitor
artificial intelligence (AI) systems running inside a business’s network as part of its “Project Perception” security strategy.
Guardian Agents continuously assess risk across an
entire ecosystem, according to the news, which was announced Monday in a blog post.By integrating the enterprise systems with Microsoft 365, the agents can share signals and context.
This provides IT and security teams with one view of agent activity and risk from cyber attacks, alongside the controls required to manage them.
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“The most trustworthy
agentic system will not be the one with the model we trust most,” Satya Nadella, Microsoft CEO, wrote in a post accompanying the announcement. “It will be the one designed that enables us to trust the
model least.”
An agent can fail or be compromised as it becomes an insider with the company, according to the post. This means it is important to minimize and tailor its…


