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Microsoft Edge: Automatically unsubscribe users from notifications sent by scam and malicious sites
Microsoft Edge will automatically unsubscribe users from notifications originating from sites flagged by Microsoft Defender SmartScreen as scam, phishing, or malware. This is a protective feature that requires no admin action and operates transparently to end users.
Microsoft's description
Microsoft Edge now helps further protect users from malicious web notifications. When a notification leads users to a site that Microsoft Defender SmartScreen blocks as a scam, phishing, or malware page, Edge automatically stops that source from sending users further notifications and lets users know. Users can review and restore any of these sites anytime under edge://settings/privacy/sitePermissions/allPermissions/notifications.