This policy setting controls whether users may bypass the SmartScreen warning if a site is deemed unsafe. The recommended state for this setting is Enabled. Rationale: Windows Defender SmartScreen can provide messages and warnings to users to help thwart phishing and malicious software however, by default, users may bypass these warnings. Impact: SmartScreen will not allow a user to bypass the warning message.
To establish the recommended configuration via GP, set the following UI path to Enabled Computer Configuration\Policies\Administrative Templates\Microsoft Edge\SmartScreen settings\Prevent bypassing Microsoft Defender SmartScreen prompts for sites Note: This Group Policy path may not exist by default. It is provided by the Group Policy template MSEdge.admx/adml that can be downloaded from Microsoft here. Default Value: Disabled.