An anonymous cybersecurity researcher who disclosed three Microsoft Defender vulnerabilities has returned with two more ...

Microsoft Windows 11 has fallen victim to three zero-day exploits in a single day as the 2026 Pwn2Own hacking event opens in ...

Try as it may, Microsoft doesn’t always manage to get security patching right the first time. Sometimes, external researchers looking at patching one vulnerability find another that emerges from the ...

What happened?: Attackers exploited a CMS flaw to replace JDownloader’s Windows and Linux installers with malware between May 6–7, 2026. What was affected?: Only Windows and Linux shell installers ...

Hackers have broken into at least one organization using Windows vulnerabilities published online by a disgruntled security researcher over the last two weeks, according to a cybersecurity firm. On ...