A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I ...

A zero-day vulnerability in Windows grants attackers elevated privileges within the system. The discoverer has given it the nickname "BlueHammer". The anonymous alleged discoverer has published a link ...

Exploit code has been released for an unpatched Windows privilege escalation flaw reported privately to Microsoft, allowing ...

Windows 10 has reached the end of support, which means cybercriminals have it in their sights. You don't have to switch if ...

AI-powered fileless malware is changing what it means to keep a Windows 11 PC secure. Here's what's happening and what to do.

Microsoft's 2011 Secure Boot certificates expire June 2026, leaving millions of Windows 10 PCs vulnerable to boot-level ...

PCWorld highlights Smart App Control, a crucial Windows 11 security feature that screens apps through Microsoft’s cloud service to protect against malware and compromised executables. A February 2026 ...

With Microsoft set to stop security updates for Windows 10 in October — unless you pay extra — security is top of mind for many businesses and individual users right now. And whether you’re planning ...

Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. I first warned Forbes readers of the threat from something ...

Windows Security (formerly Windows Defender) is the built-in antivirus tool bundled with the operating system. It has saved ...