The Department of Justice charged three Chinese nationals working for an internet security firm in China with hacking three companies and stealing hundreds of gigabytes of data and trade secrets from Siemens AG, Moodys Analytics and GPS maker Trimble. Both the malware and the organization to which defendants Wu Yingzhuo, Dong Hao and Xia Lei belonged have previously been linked to the Chinese government. The indictment, filed in September, was unsealed on Monday. FBI Special Agent in Charge Bob Johnson said investigators relied on missteps to identify the hackers.”]