Microsoft Copilot (Microsoft 365): Copilot Extensibility - Automatic project scaffolding in Teams Toolkit for building Graph connectors

🚨 The Signal: Developers can now automatically build Microsoft Graph connectors for Copilot using Teams Toolkit. This simplifies integrating external data sources, expanding Copilot's knowledge base but also increasing the attack surface if not properly secured.

The Impact

Developers and security teams are affected, with a risk of unintended data exposure or over-privileged access if connectors are not securely configured.

  • Developers: Risk of creating insecure connectors, leading to data exposure.
  • Security Teams: Increased attack surface from new data ingestion points.
  • Data Owners: Potential for sensitive data to be exposed to Copilot users.
  • Compliance Teams: New data flows require updated governance and auditing.

The Action

  1. Review and update data governance policies for Graph connectors.
  2. Implement least privilege principles for connector service accounts.
  3. Establish a secure development lifecycle for Graph connector applications.
  4. Audit existing and new Graph connectors for data access and scope.
  5. Educate developers on secure coding practices for Graph connectors.

Domain: Agentic-AI · Impact: high · Workload: Other · Essential Eight: Restrict Administrative Privileges · ISM: ISM-0445, ISM-1175, ISM-1380, ISM-1507, ISM-1508, ISM-1509, ISM-1647, ISM-1648, ISM-1650, ISM-1686, ISM-1688, ISM-1689, ISM-1883, ISM-1897, ISM-1898