# Microsoft Edge `Computer Configuration\Policies\Administrative Templates\Microsoft Edge` - SmartScreen settings -> Configure Microsoft Defender SmartScreen -> Enabled - SmartScreen settings -> Configure Microsoft SmartScreen to block potentially unwanted apps -> Enabled - TyposuqattingChecker settings -> Configure Edge TyposquattingChecker -> Enabled # Microsoft Defender Antivirus ## MAPS `Computer Configuration\Policies\Administrative Templates\Windows Components\Microsoft Defender Antivirus` - Join Microsoft MAPS -> Enabled -> Advanced Membership - Configure the 'Block at First Sight' feature -> Enabled - Send file samples when further analysis is required -> Enabled -> Always Prompt (Send safe sample works better with 'Block at First Sight, but I really, really do not trust Microsoft on this one) ## Network Protection `Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Network Protection` Only relevant if SmartScreen is used. Documentation: - https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/network-protection?view=o365-worldwide - https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/enable-network-protection?view=o365-worldwide This settings controls whether Network protection is allowed to be configured into block or audit mode on Windows -> Enabled (Only relevant if running Windows Server) Prevent users and apps from accessing dangerous websites -> Enabled -> Block ## MpEngine `Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\MpEngine` Only relevant if MAPS is used - Configure extended cloud check -> Specify the extended cloud check time in seconds -> 50 - Select cloud protection level -> Zero tolerance blocking level # Windows Defender SmartScreen `Computer Configuration\Policies\Administrative Templates\Windows Components\Windows Defender SmartScreen` - Explorer -> Configure Windows Defender SmartScreen -> Enabled -> Warn - Microsoft Edge -> Configure Windows Defender SmartScreen -> Enabled