The 'ShieldBreak' flaw can let an attacker use Windows Defender to escalate their privileges on the OS. Microsoft previously threatened legal action against the researcher, Nightmare Eclipse.

Admins responsible for Windows fleets are advised to take action to protect their systems against this actively exploited vulnerability. Here's what you need to do to stay secure.

Windows 11's default widgets display the weather, stock market prices, and more. You can customize them, or you can turn them ...

The Hacker News is the top cybersecurity news platform, delivering real-time updates, threat intelligence, data breach ...

Learn how BitLocker, passkeys, Microsoft Defender, and other Windows 11 security features protect your data, accounts, apps, and devices. Windows 11 comes with plenty of built-in security tools, but ...

Microsoft has slammed the brakes on its latest security update after a devastating bug was found to cause havoc for Dell laptops. A glitch in the latest version of Windows 11 causes laptops to run hot ...

Do you remember July 19, 2024? The great CrowdStrike-Windows meltdown? Say that date to a network admin in any big company and watch them shudder at the memory. Starting at 12:09 AM, Eastern Daylight ...

Cybersecurity researchers have flagged a novel Java-based remote access trojan (RAT) called QuimaRAT that's capable of targeting Windows, Linux, and macOS environments. According to LevelBlue, the ...

Microsoft shipped its largest-ever security update on June 9, 2026, and the 2011 Secure Boot certificates inside Windows begin expiring in late June, which makes this the right month to stop ignoring ...

In the ever-evolving cybersecurity landscape, Microsoft has introduced various new features in Windows 11 designed to protect users from modern workplace threats. Among such features, Smart App ...

Smart App Control (SAC) is a security feature in Windows 11 that enhances protection against untrusted apps. When turned on, it helps block potentially unwanted, untrusted, malicious, or unsigned apps ...

Windows remains one of the most targeted systems by threat actors by volume, according to recent statistics from AV-TEST, with threats ranging from malware and phishing to viruses constantly putting ...