Outlook: Editor (Proofing and Spellcheck) for GCC Mod

🚨 The Signal: Outlook for Windows GCC Mod now includes automatic spelling and grammar checking. This feature, while enhancing productivity, introduces potential data exposure risks through cloud-based processing of sensitive information.

The Impact

All users are affected; the security risk is low but present, related to data processing location.

• End Users: Email content may be processed by cloud services for proofing.
• Security Teams: Need to confirm data processing locations for compliance.
• Compliance Officers: Review data handling policies for email content.
• Admins: Verify no sensitive data is inadvertently sent to external services.

The Action

1. Review Microsoft's data processing terms for Outlook proofing in GCC Mod environments.
2. Communicate to users about the automatic proofing feature and its data handling implications.
3. Assess if existing data loss prevention (DLP) policies adequately cover email content processed by proofing services.
4. Consider disabling the feature if data residency requirements are exceptionally strict, via Group Policy or Intune configuration profiles.

Domain: M365-Apps · Impact: low · Workload: M365 Apps