21 May 2026.
The Hacker News report that "Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild."
Source: The Hacker News.
"Microsoft Defender Antivirus is included in Windows 10 and Windows 11."
Source: DuckDuckGo Search Assist.
Windows Defender users can view how to check the latest version of the Microsoft Malware Protection Platform and definition updates are being actively downloaded and installed to their device at the link below.
Read more: Microsoft warns of two actively exploited Defender vulnerabilities
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