Outlook: Shared with Me Settings page

🚨 The Signal: Outlook users can now view permissions for shared folders and mailboxes directly. This improves transparency for users regarding their access rights, potentially reducing accidental oversharing or unauthorized access risks.

The Impact

End users and security teams are affected by improved visibility into shared access, reducing the risk of unauthorized data exposure.

• End users: Can verify their own access, reducing accidental data exposure.
• Security teams: Better visibility aids in auditing and enforcing access policies.
• Compliance officers: Easier to demonstrate adherence to access control requirements.

The Action

1. Review existing shared mailbox and folder access policies for alignment with new user visibility.
2. Communicate to end-users how to access and interpret the new 'Shared with Me' settings page.
3. Incorporate this new visibility into regular access review processes within Microsoft Purview.

Domain: Exchange · Impact: medium · Workload: Exchange Online · Essential Eight: User Application Hardening · ISM: ISM-1412, ISM-1485, ISM-1486, ISM-1542, ISM-1585, ISM-1667, ISM-1668, ISM-1669, ISM-1670, ISM-1823, ISM-1824, ISM-1859, ISM-1860