Russian hackers who broke into Microsoft's systems and spied on staff inboxes earlier this year also stole emails from its customers, the tech giant said on June 27, around six months after it first disclosed the intrusion. The disclosure underscores the breadth of the breach as Microsoft faces increasing regulatory scrutiny over the security of its software and systems against foreign threats. An allegedly Chinese hacking group that separately breached Microsoft last year stole thousands of U.S. government emails. The Russian government has never responded to the Microsoft hacking allegations, but Microsoft has said the hackers targeted cybersecurity researchers who had been investigating the Russian hacking group's actions. To read the original story by Reuters, click here.