Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates.
A Microsoft Defender SmartScreen vulnerability patched in November has found fresh active exploitation in a Phemedrone information-stealing malware campaign, according to cybersecurity research and ...
Morning Overview on MSN
New zero-day bug can silently block Windows Defender’s virus updates
A researcher who calls himself Nightmare Eclipse published a free tool on September 19, 2026, that can quietly stop Windows Defender from installing its own virus-definition and platform updates, ...
Что означает предупреждение SmartScreen о неизвестном приложении, чем репутация отличается от проверки на вирусы и когда ...
Microsoft has fixed the bug that made Windows Security wrongly claim Microsoft Defender Antivirus was turned off. According ...
Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. There are a number of antivirus, anti-malware, and internet ...
Exploiting CVE-2023-36025 allows attackers to bypass Windows Defender SmartScreen checks and associated prompts, which means that when the victim is tricked into dowloading and opening a malicious ...
Update, March 31, 2025: This story, originally published March 29, has been updated with an explanation of LOLBINS as well as further technical information regarding the Windows Defender Application ...
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