Microsoft Copilot (Microsoft 365): Summarize email with Copilot chat in Outlook

🚨 The Signal: Copilot chat can now summarize emails in Outlook for users without a Microsoft 365 Copilot license, if Copilot chat access and pinning are enabled. This expands AI-driven information access, increasing potential for data exposure.

The Impact

All users with Copilot chat access are affected, increasing the risk of sensitive information being processed and potentially exposed via AI summaries.

• End Users: Risk of over-reliance on AI summaries, potentially missing critical details or context.
• Security Teams: Increased surface area for data processing by AI, requiring review of data governance policies.
• Data Owners: Risk of sensitive information being inadvertently included in summaries and shared.
• Compliance Teams: New considerations for data retention and privacy when AI processes email content.

The Action

1. Review and update existing Microsoft 365 Copilot data governance policies to explicitly cover email summarization by Copilot chat.
2. Educate users on responsible use of Copilot chat for email summarization, emphasizing data sensitivity.
3. Verify Copilot chat access controls in the Microsoft 365 admin center to ensure only authorized users can leverage this feature.
4. Monitor Copilot usage reports for email summarization to identify potential data exposure risks or policy violations.

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