Security News

Windows Defender Application Guard is a powerful tool that's also a pointer to how future operating systems and applications will interact.

Several Windows users have reported that Windows Defender has detected real Windows files as Trojan:Win32/Bluteal.B!rfn. Here's how to fix the problem.

Microsoft is planning a new feature for Windows Defender that will continually check for system integrity, informing users if any secure part of the operating system has been compromised.

Microsoft has rolled out a new Windows Defender Browser Protection extension to help Chrome users stay safe from malware and phishing websites. read more

Rar! That's a scary bug A remote-code execution vulnerability in Windows Defender – a flaw that can be exploited by malicious .rar files to run malware on PCs – has been traced back to an...

Microsoft Dissects FinFisher’s Complex Infection Process read more

Microsoft will backport Windows Defender Advanced Threat Protection (ATP) to meet the security needs of organizations that have not yet entirely switched to Windows 10. Windows Defender ATP...

Microsoft on Monday announced plans to make Windows Defender Advanced Threat Protection (ATP) available for Windows 7 SP1 and Windows 8.1 devices. read more

A Windows 10 feature is coming to old platforms.

A recently disclosed vulnerability that allows an attacker to abuse the quarantine feature of anti-virus products to escalate privileges doesn’t affect Windows Defender, Microsoft says. read more