Disable Trust Bar Notification for unsigned application add-ins

Information

This policy setting controls whether the specified Office application notifies users when unsigned application add-ins are loaded or silently disable such add-ins without notification. This policy setting only applies if you enable the 'Require that application add-ins are signed by Trusted Publisher' policy setting which prevents users from changing this policy setting.

If you enable this policy setting applications automatically disable unsigned add-ins without informing users. If you disable this policy setting if this application is configured to require that all add-ins be signed by a trusted publisher any unsigned add-ins the application loads will be disabled and the application will display the Trust Bar at the top of the active window. The Trust Bar contains a message that informs users about the unsigned add-in.

If you do not configure this policy setting the disable behavior applies and in addition users can configure this requirement themselves in the 'Add-ins' category of the Trust Center for the application.

Solution

Policy Path: Microsoft Publisher 2016\Security\Trust Center
Policy Setting Name: Disable Trust Bar Notification for unsigned application add-ins

See Also

https://blogs.technet.microsoft.com/secguide/2018/02/13/security-baseline-for-office-2016-and-office-365-proplus-apps-final/

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-18(4)

Plugin: Windows

Control ID: 8607b5af66a55969085ddd2eddee88372158eb374f7f01b8062c57f3175b1151