Microsoft: North Korean hackers targeted vulnerability researchers in an attempt to steal information via a backdoor. The advanced persistent threat group is believed to have previously been responsible for a number of high-profile incidents, including the WannaCry ransomware attacks in 2017. Microsoft also says the hackers may have exploited zero-day vulnerabilities in Windows and Chrome. Microsoft stresses that anyone who visited one of the hacker-controlled domains or received a file from the hackers should run a scan of their device to look for indicators of the hackers.”]