OneDrive-backed whiteboards are whiteboard files stored and managed through OneDrive instead of a separate standalone Whiteboard workflow. In practice, that means the content is treated more like a cloud document: it inherits tenant identity, sharing controls, retention policies, audit logging, and version handling from Microsoft 365 storage services.
This matters because collaboration content often contains meeting notes, diagrams, credentials hints, incident plans, and other sensitive business context. For defenders, the shift changes what needs review during access control, eDiscovery, DLP, and migration planning. For attackers, the same model can create opportunity if files are over-shared, links are left public, or old content remains reachable after a platform change. Administrators should verify ownership, permissions, and lifecycle rules so the whiteboard stays protected as it moves with the rest of the cloud data.