Microsoft Copilot (Microsoft 365): Save an audio overview from Copilot Notebooks to OneDrive

🚨 The Signal: Copilot Notebooks can now save generated audio overviews to OneDrive. This introduces a new vector for sensitive information disclosure and requires re-evaluation of data governance policies for AI-generated content.

The Impact

All users are affected, increasing the risk of sensitive AI-generated audio content being inadvertently shared or exfiltrated via OneDrive.

• End-users: Increased risk of accidental oversharing of sensitive audio summaries.
• Security Teams: New data exfiltration vector to monitor and control within OneDrive.
• Compliance Teams: Challenges in maintaining data residency and access controls for AI-generated content.
• Data Owners: Potential for sensitive information to reside in unapproved locations.

The Action

1. Review and update Microsoft Purview Data Loss Prevention (DLP) policies to specifically identify and restrict sharing of audio files containing sensitive information generated by Copilot.
2. Configure OneDrive sharing policies to limit external sharing of AI-generated content, especially audio files.
3. Educate users on the risks associated with sharing AI-generated audio summaries and the importance of verifying content sensitivity.
4. Implement sensitivity labels for AI-generated content, including audio files, to enforce appropriate access and sharing restrictions.
5. Monitor audit logs for unusual sharing activities involving audio files from Copilot Notebooks saved to OneDrive.

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