Hackers are abusing unpatched Windows security flaws to hack into organizations

Hackers are abusing unpatched Windows security flaws to hack into organizations

The first StrictlyVC of 2026 hits SF on April 30. Tickets are going fast. Register now. The first StrictlyVC of 2026 hits SF on April 30. Tickets are going fast. Register now. TechCrunch Desktop Logo TechCrunch Mobile Logo LatestStartupsVentureAppleSecurityAIApps EventsPodcastsNewsletters SearchSubmit Site Search Toggle Mega Menu Toggle Topics Latest Hackers are abusing unpatched Windows security flaws to hack into organizations Lorenzo Franceschi-Bicchierai 10:48 AM PDT · April 17, 2026 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 Friday, cybersecurity company Huntress said in a series of posts on X that its researchers have seen hackers taking advantage of three Windows security flaws, dubbed BlueHammer, UnDefend, and RedSun. It’s uncl

Source: https://techcrunch.com/2026/04/17/hackers-are-abusing-unpatched-windows-security-flaws-to-hack-into-organizations/