Microsoft Copilot (Microsoft 365): [Copilot Extensibility] Connector Metadata Enrichment for Custom Copilot Connectors

🚨 The Signal: Admins can now add rich metadata to custom Copilot connectors. This improves Copilot's understanding of data sources, potentially increasing the accuracy and relevance of AI-generated responses, but also the attack surface for data exfiltration or manipulation.

The Impact

Security teams and Copilot administrators are affected by new configuration options that can improve AI accuracy but also increase data exposure risks.

• Security teams: Must review new metadata options for data exposure risks.
• Copilot administrators: Need to understand how to securely configure new connector properties.
• Data owners: Their data may be exposed more broadly if connectors are misconfigured.
• Compliance officers: Must ensure metadata aligns with data classification and privacy policies.

The Action

1. Review existing custom Copilot connectors for metadata enrichment opportunities.
2. Develop internal guidelines for metadata tagging of sensitive data sources.
3. Implement a review process for all new custom connector metadata configurations.
4. Monitor Copilot usage logs for unusual data access patterns via custom connectors.

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