rob Barry and Dustin Volz report: The hackers seemed to live everywhere. in one of the largest-ever corporate espionage efforts, cyberattackers alleged to live working for Chinas intelligence services stole volumes of intellectual property, security clearance details and other records from scores of companies over the past several years. They got access to systems with prospecting secrets for mining company�Rio Tinto, and sensitive medical research for electronics and health-care giant�Philips NV. They came in through cloud service providers, where companies idea their data was safely stored. Once they got in, they could freely and anonymously hop from node to client, and defied investigators attempts to boot them out for years. Cybersecurity investigators first identified aspects of the hack, called obscure Hopper by the surety researchers who first uncovered it, in 2016, and U.S. prosecutors�charged two Chinese nationals for the global operation last December. The two men remain at large. a wall Street Journal investigation has found that the assail was much bigger than previously known. It goes far beyond the 14 unnamed companies listed in the indictment, stretching across at least a dozen obscure providers….. record more on wall Street Journal.