In August, a man claiming to be an attorney with the Chinese firm Boss & Young Patent and Trademark Law Office was charged in the U.S. with attempting to steal trade secrets after he was caught sitting uninvited at a Massachusetts-based medical technology company with two laptop computers and various data storage devices.

According to the FBI, 44-year-old Liu Dong was discovered by Samuel Straface, the CEO of Raynham, Massachusetts-based Medrobotics Corp., sitting in a conference room in a secure section of the company’s office at about 7:30 p.m. on Aug. 28, with what appeared to be three open laptops. Straface asked Liu who he had an appointment to see, and after Liu named two people who Straface knew were out of the office, Liu named Straface himself, prompting the CEO to call the police. Liu identified himself as a senior partner and a patent attorney with Boss & Young Beijing.