Microsoft Defender for Identity now has a new sensor to further detect certificate abuses by attackers, per a Wednesday announcement. The new sensor gets deployed on Active Directory Certificate ...

Microsoft says a new Defender capability isolated a compromised device and stopped a ransomware attack in 128 seconds.

Microsoft is named a Leader in the 2026 IDC MarketScape for MDR services. Discover how Microsoft Defender Experts MDR combines AI, threat intelligence, and human expertise.

Microsoft Defender automatically isolated a compromised QNET endpoint in 129 seconds, stopping a multi-stage attack before the payload could persist or spread.

Learn how BitLocker, passkeys, Microsoft Defender, and other Windows 11 security features protect your data, accounts, apps, and devices.

Microsoft Corp. today unveiled a major expansion of its artificial intelligence security and governance offerings with the introduction of new capabilities designed to secure the emerging “agentic ...

For most people using a supported and fully updated Windows 11 computer, yes: Microsoft Defender Antivirus and the other protections inside Windows Security are sufficient as the primary antivirus.

Looking for the best antivirus for Windows 11? Check out our top picks to protect your device as well as your system and network to the core!

Best Antivirus Best Free Antivirus for Windows 10 in 2026: Top Free Protection Options Compare the best free antivirus tools for Windows 10 in 2026, including real-time malware protection, phishing ...