Microsoft Copilot (Microsoft 365): MCP-Based Agent Enablement for U.S. Government Clouds

🚨 The Signal: Microsoft 365 Copilot in GCC now supports Model Context Protocol (MCP)-based agents. This allows developers to build custom Copilot agents, expanding AI capabilities but introducing new vectors for data exposure and prompt injection risks.

The Impact

Security teams and AI governance specialists are affected by new risks from custom Copilot agents.

• Security teams face new prompt injection and data exfiltration risks.
• AI governance specialists must update policies for agent identity and data handling.
• Developers need secure coding practices for custom Copilot agents.
• Compliance officers must assess new data processing and storage implications.

The Action

1. Review and update AI governance policies to include custom Copilot agents.
2. Implement data loss prevention (DLP) policies for Copilot interactions.
3. Establish secure development lifecycle (SDL) requirements for MCP-based agents.
4. Monitor Copilot audit logs for unusual agent activity or data access patterns.
5. Educate developers on secure prompt engineering and agent design principles.

Domain: Agentic-AI · Impact: high · Workload: Other