Policy
Allow Basic Authentication prompts from network proxies
Microsoft Office
Policy overview
Key metadata and intent for this policy.
This policy setting controls whether network proxies are allowed to show Basic Authentication prompts. By default, all Basic Authentication sign-in prompts are blocked, and the user is shown a message that the sign-in method isn’t allowed. If you enable this policy setting, then network proxies will be allowed to show Basic Authentication prompts. Warning: Allowing Basic Authentication sign-in prompts isn’t recommended because it’s a security risk. If you disable or don’t configure this policy setting, all Basic Authentication sign-in prompts from network proxes will be blocked, and the user will be shown a message that the sign-in method isn’t allowed. Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise, and to subscription versions of Project and Visio. For more information, see https://go.microsoft.com/fwlink/p/?linkid=2199001.
Registry values
How enabled and disabled states update the registry.
| Scope | Registry location | Type | Enabled value | Disabled value | Copy |
|---|---|---|---|---|---|
| User | Path software\policies\microsoft\office\16.0\common\identity Value name basicauthproxybehavior | REG_DWORD | HKCU 1 | HKCU 0 |
Policy elements
Inputs and configuration options exposed by this policy.
This policy has no additional user input fields.