Prevent bypassing Microsoft Defender SmartScreen prompts for sites

This policy setting lets you decide whether users can override the Microsoft Defender SmartScreen warnings about potentially malicious websites. If you enable this setting, users can't ignore Microsoft Defender SmartScreen warnings and they're blocked from continuing to the site. If you disable or don't configure this setting, users can ignore Microsoft Defender SmartScreen warnings and continue to the site. This policy is available only on Windows instances that are joined to a Microsoft Active Directory domain, Windows 10 Pro or Enterprise instances that enrolled for device management, or macOS instances that are that are managed via MDM or joined to a domain via MCX.