Outlook: Newsletters

🚨 The Signal: Outlook now includes native newsletter creation and distribution. This introduces new internal communication channels, potentially increasing the risk of information oversharing or unapproved content distribution within the organisation.

The Impact

All users are affected, increasing the risk of unapproved information dissemination and potential data leakage.

• End Users: Increased risk of inadvertently sharing sensitive information.
• Security Team: New vector for data exfiltration and unapproved content.
• Compliance Team: Challenges in monitoring and enforcing content policies.
• Admins: New communication channel to secure and govern.

The Action

1. Review existing communication policies to include internal newsletters.
2. Educate users on appropriate content for internal newsletters and data handling.
3. Monitor communication channels for sensitive information sharing.
4. Implement data loss prevention (DLP) policies to detect and prevent sensitive data in newsletters.

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