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.

Microsoft shares key Windows Server hardening tips, covering OSConfig, Defender, Server Core, App Control, and firewall ...

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

With each update, new security patches are installed on your system that enhances the security of your PC. Hence, it is important to keep your Windows 11 up to date and install each and every update ...

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 ...

I built it from source and threw a misbehaving agent at it ...

Why it matters: Microsoft Defender, the security software built into Windows, is under pressure from a flaw that has now been linked to ransomware, according to federal cybersecurity officials. The ...

Microsoft is pairing autonomous cyberdefense with new Defender protections designed to detect and block risky AI agent activity as it happens.

Detecting credential theft and misuse patterns for UK SMEs Credential theft is often less about a dramatic break-in and more about an attacker using valid access in ways that do not fit normal ...

Don't reinstall Windows if you PC is slow. Try these simple tricks, and you should see a noticeable speed boost.

Chaos-linked msaRAT drives headless Chrome or Edge over CDP, relaying encrypted C2 through Twilio TURN while its own process ...

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