[Whiteboard] Standalone app deprecation (Windows, Mobile)

🚨 The Signal: Microsoft is deprecating standalone Whiteboard apps for Windows, iOS, and Android by October 2026. Users must transition to Whiteboard via Microsoft Teams or web browsers, centralising access and potentially simplifying endpoint management.

The Impact

Users relying on standalone Whiteboard apps are affected, with a low security risk due to consolidated access points.

• End users: Must adapt to new Whiteboard access methods.
• IT administrators: Can simplify application deployment and patching.
• Security teams: Reduced attack surface from fewer standalone apps.

The Action

1. Communicate the deprecation of standalone Whiteboard apps to users.
2. Educate users on accessing Whiteboard via Microsoft Teams or web browsers.
3. Review existing Whiteboard policies to ensure compatibility with Teams/web access.
4. Plan for the removal of standalone Whiteboard apps from managed devices by October 2026.

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