Security researchers say they've found evidence that suggests a state-sponsored hacking group in North Korea may be behind the global WannaCry ransomware hack.<br /> The connection was made by Google security researcher Neel Mehta, who pointed out similarities between WannaCry and malware used by Lazarus, the North Korean group that's been blamed for the Sony Pictures hack of 2014. The malware has scrambled data at hospitals, factories, government agencies, banks and other businesses since Friday. Ransomware encrypts important files, locking people out of their computers unless they pay up to prevent their entire system from being deleted.
