Prolonged Chinese Hack of Weapons Makers Stole Vital Secrets

Prolonged Chinese Hack of Weapons Makers Stole Vital Secrets

Peter Parks/AFP via Getty Images

A person walks past a 12-story building alleged in a report by the Internet security firm Mandiant as the home of a Chinese military-led hacking group after the firm reportedly traced a host of cyber attacks to the building in Shanghai's northern suburb of Gaoqiao.