Computer Configuration > Administrative Templates > Microsoft Edge - Default Settings (users can override) > Scareware Blocker settings
Both
HKLM\Software\Policies\Microsoft\Edge\Recommended
This policy controls whether Microsoft Edge shares URLs of sites that are detected as potential tech scams with Microsoft Defender SmartScreen. This policy only takes effect if ScarewareBlockerProtectionEnabled is enabled. If you enable this policy, Microsoft Edge shares URLs of sites detected as potential tech scams with Microsoft Defender SmartScreen. If you disable or don't configure this policy, Microsoft Edge doesn't share URLs of sites detected as potential tech scams with Microsoft Defender SmartScreen.