Quick Assist is a Microsoft app that lets a person share their Windows or macOS screen with a helper, who can view the screen, annotate it or, with permission, take control. The helper starts a session, receives a time-limited security code and passes it to the user. The helper needs a Microsoft account or Microsoft Entra ID. On macOS the app is only available through contact with Microsoft Support. The app is installed on the devices themselves, but the connection runs through Microsoft's Remote Assistance Service.
Microsoft Corporation is headquartered in Redmond, United States. According to its documentation, Microsoft logs a small amount of session data, cannot access a session or keystrokes, and stores no data about the helper or sharer for longer than three days. Where the relay service runs is not documented. Microsoft advises organisations working within a single Entra tenant to use Intune Remote Help, which keeps sessions inside the tenant boundary.