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Rise of Fake Windows Defender Alerts and Ransomware Exploits

Rise of Fake Windows Defender Alerts and Ransomware Exploits

First seen 2 Dec 2025, 18:33 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A recent report indicates that ransomware groups have developed methods to remotely disable Windows Defender, a built-in security tool from Microsoft, using trusted Windows drivers. This vulnerability allows criminals to turn off security alerts without detection, leading to an increase in fraudulent alerts aimed at gaining remote access to users' computers. Users are advised to be cautious and not rely solely on Windows Defender for protection.

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