Hackers are abusing unpatched Windows security flaws to hack into organizations

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.