Microsoft on Wednesday morning issued an emergency update to its Microsoft Malware Protection Engine, closing CVE-2026-50656 — the Windows Defender privilege-escalation flaw known as RoguePlanet — 29 ...
From late April 2026 to mid-June 2026, Microsoft Defender Experts observed increased ACR Stealer activity across customer ...
With Microsoft’s 2011 Secure Boot certificates now expired or expiring in stages, every major PC manufacturer has published dedicated guidance for their customers. HP, Dell, ASUS, Lenovo, MSI, Acer, ...
Microsoft Defender Antivirus scans files as Windows sees them, and monitors running processes for malicious behavior (known or suspected). If the antivirus engine discovers malicious activity, the ...
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