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Microsoft Defender

4 Articles

A great reed warbler nest holding five pale, speckled eggs, one of which is a cuckoo egg

Microsoft’s NeedyMantis Report Turns Legitimate Filenames Into a Detection Problem

Microsoft's analysis of NeedyMantis, a modular implant in use...

An antique iron skeleton key resting on a plain gray background

A Researcher’s Third Straight Bypass Shows Microsoft’s Defender Patches Keep Falling Short

A researcher who calls themselves Nightmare Eclipse has...

A glowing red unlocked padlock over rows of green and blue numeric data on a dark screen, representing stolen credentials exposed in a security breach

Microsoft Warns of a Surge in ACR Stealer Attacks on Enterprise Customers

Microsoft found a surge in ACR Stealer attacks on enterprise...

Padlock and chain securing a digital device, representing endpoint security

CISA Marks Microsoft Defender BlueHammer as Ransomware-Used

CISA’s KEV catalog now lists CVE-2026-33825, the Microsoft...

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