Microsoft Defender offers great protection from malware -- but there are other online threats you might want to consider, too ...

A week ago, the security researcher who goes by “Nightmare Eclipse” published information about RoguePlanet, a zero-day ...

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.

RoguePlanet now has a CVE and a patch in the works, a week after the disclosure of a PoC.

CISA has added the Microsoft Malware Protection Engine and Microsoft Defender Antimalware Platform vulnerabilities to its KEV catalog, suggesting exploitation in the wild. Microsoft released emergency ...

Antivirus software used to hunt for known malware, but now it’s predicting suspicious behavior before an attack fully lands.

Update May 25, 04:19 EDT: CVE-2026-41091 is a Microsoft Defender local privilege escalation (LPE) flaw known as RedSun, and CVE-2026-45498 is known as UnDefend, a security flaw that can be exploited ...

Microsoft on Wednesday said it has disrupted infrastructure tied to StealC and Amadey, two widely used cybercrime tools that the company says have become part of a broader malware supply chain used to ...

Microsoft says it has detected new self-propagating malware that spreads through USB drives in search of cryptocurrency ...

Infostealer malware has been on the rise recently, and that's evident from the billions of user records leaked online in the past year alone. This type of malware targets everything from your name, ...

Compare the best free antivirus tools for Windows 10 in 2026, including real-time malware protection, phishing defense, ...