Microsoft asks Windows users to install an update immediately after security researchers have found a serious vulnerability in the operating system.

The vulnerability known as PrintNightmare affects the Windows print spooler service, reports CNN. Researchers at cybersecurity company Sangfor accidentally published instructions on how to use it.

The researchers tweeted at the end of May that they had found vulnerabilities in the print spooler, which allows multiple users to access a printer. They accidentally posted a proof of concept online and then deleted it – but not before it was published elsewhere online, including the developer site GitHub.

Microsoft warned that hackers who exploited the vulnerability could install programs, view and delete data, or even create new user accounts with full user rights. This gives hackers enough control and control over PCs to cause serious damage.

Windows 10 isn’t the only version affected – Windows 7 has been discontinued by Microsoft …

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