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Microsoft Defender SmartScreen determines whether a downloaded app or app installer is potentially malicious by: If it finds a match, Microsoft Defender SmartScreen shows a warning to let the user know that the site might be malicious. Checking the visited sites against a dynamic list of reported phishing sites and malicious software sites.If Microsoft Defender SmartScreen determines that a page is suspicious, it will show a warning page to advise caution. Analyzing visited webpages and looking for indications of suspicious behavior.Microsoft Defender SmartScreen determines whether a site is potentially malicious by:
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Microsoft Defender SmartScreen protects against phishing or malware websites and applications, and the downloading of potentially malicious files.
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