An introduction to Microsoft’s Agent 365

Agent 365 is Microsoft’s cross-estate governance and security layer for AI agents. It’s been designed to help organisations manage agents regardless of where they are built or acquired. This matters because most organisations will not adopt AI agents from just one place, and governance needs to keep pace with that reality. Additionally, it provides organisations a single place to identify agents, apply controls, monitor activity, and reduce risk across a growing agent estate.  

The five capabilities that define Agent 365 

Agent 365 is not just a monitoring dashboard or a security add-on. Microsoft frames it around five connected capabilities that work together to give IT, security, and compliance teams meaningful control over agents at scale. 

• Agent Registry is the starting point. You cannot govern what you cannot see, and Agent 365 is designed to discover and catalogue agents across the organisation, including unmanaged or “shadow agents” introduced outside formal IT processes. This level visibility gives organisation the capacity for ownership, lifecycle management, and governance. 
• Access Control is where governance becomes actionable. Agent 365 applies least-privilege thinking to agents, helping organisations restrict access to only the resources an agent genuinely needs. This helps to support consistent policy enforcement and reduces the risk of over-permissioned agents interacting with sensitive data or systems. 
• Visualisation adds the operational view. Through telemetry and relationship mapping, organisations can better understand how agents connect with people, data, and services. This can be useful for monitoring and investigation, assessing impact, identifying drift, and improving audit readiness over time. The view is very similar to the visual map in Defender for Endpoint. 
• Interoperability reflects a practical truth: most organisations will run a mixed estate. Agent 365 is intended to govern Microsoft agents alongside open-source and third-party agents through a common framework. That reduces fragmentation and helps avoid separate governance models emerging in parallel. 
• Security ties everything together. Agent 365 can be used to protect agents from threats, while also safeguarding the data they create and consume from oversharing, leaks, and risky behaviour. For customers already invested in Microsoft 365 security and compliance, this is an important message: Agent 365 is not replacing those controls, it is extending governance into a new layer of AI-driven activity. 

How Agent 365 fits into Microsoft 365 

Agent 365 makes the most sense when you look at it within the wider Microsoft 365 stack. It’s included in Microsoft 365 E7, alongside Microsoft 365 E5, Microsoft 365 Copilot, and Microsoft Entra Suite, but it is also available as a standalone subscription. That means organisations can either adopt it as part of the wider E7 bundle or introduce it separately, depending on where they are in their Microsoft 365 journey. 

From a licensing point of view, Agent 365 is designed around agents acting on behalf of a user. Microsoft describes this as a per-user licence for on-behalf-of (OBO) agents, so if a user is licensed for Agent 365 or E7, their OBO agent activity is covered. It is also worth noting that any separate build-and-run costs in Copilot Studio still sit outside that licence. 

Where this becomes useful in practice is in understanding the role of E3 and E5. E3 remains the core productivity foundation, while E5 adds the advanced security and compliance capabilities that help prepare the estate for AI, such as Purview, Defender, and Insider Risk. Agent 365 is not included in either E3 or E5, but it builds on that foundation by adding governance specifically for agents. In that sense, E5 helps you secure and govern the data and identities agents rely on, while Agent 365 helps you govern the agents themselves. 

What does readiness for Agent 365look like? 

As with Copilot, the technology itself is only part of the story. Agent 365 is most effective when organisations are ready and can see return on investment. Microsoft’s readiness messaging makes that clear. Before deployment, businesses should look closely at identity and access controls, data governance, and security posture. Conditional Access baselines, privileged access approaches, permissions reviews across SharePoint, Teams, and OneDrive, sensitivity labels, DLP, retention, and operational security processes all matter here. 

There is also an agent-specific readiness layer. Organisations need to think about visibility, ownership, approval, lifecycle, and decommissioning. If an agent is introduced into the business, who owns it? Who reviews its access? How is change controlled? What happens when it is no longer needed? They are the basics of running agents as governed digital workers rather than isolated experiments. 

Operational readiness matters just as much. Responsible AI policies, publishing standards, incident response playbooks, audit processes, role-based training, and adoption plans all need attention. In my view, that is one of the most useful things about the Agent 365 conversation: it encourages organisations to think beyond the excitement of agents and focus on the operating model that will make them sustainable. 

The bigger picture 

The most interesting thing about Agent 365 is what the product represents. As AI shifts from assistance to action, governance has to move with it. For Microsoft, Agent 365 represents this shift. Copilot may help people create, summarise, and work faster, but agents increasingly introduce autonomy, workflow execution, and business impact. That makes visibility, control, and security all the more important. 

For organisations thinking seriously about AI at scale, Agent 365 feels like an important piece of the puzzle. It gives leadership teams a clearer governance model, helps IT and security teams maintain oversight, and supports a more responsible path from pilots to operational adoption. In short, if Copilot is helping organisations realise the value of AI in day-to-day work, Agent 365 is shaping the control model needed to scale that value safely. 

Find out more about our Microsoft partnership here, our Copiot implentation services here and AI services here.