Microsoft Copilot (Microsoft 365): Meetings search using categories added in Outlook

🚨 The Signal: Copilot can now search meetings using Outlook categories. This expands Copilot's data access, increasing the risk of sensitive information exposure if categories are not managed securely.

The Impact

All Copilot users are affected, with an increased risk of sensitive meeting data exposure if not properly governed.

• End Users: Risk of oversharing sensitive meeting content via Copilot.
• Security Teams: Increased data exposure surface requires stricter governance.
• Admins: Need to review and enforce data classification policies for Outlook categories.
• Compliance Teams: Potential for non-compliance with data handling regulations.

The Action

1. Review existing Outlook category usage for sensitive data classification.
2. Implement or refine data loss prevention (DLP) policies for meeting content.
3. Educate users on appropriate use of Outlook categories and Copilot search.
4. Monitor Copilot usage logs for unusual access patterns to meeting data.

Domain: Agentic-AI · Impact: medium · Workload: M365 Apps