"Industrial espionage: How China sneaks out America's technology secrets"
According to a Department of Justice (DOJ) indictment, the US citizen hid confidential files stolen from his employers in the binary code of a digital photograph of a sunset, which Mr Zheng then mailed to himself.
It was a technique called steganography, a means of hiding a data file within the code of another data file. Mr Zheng utilised it on multiple occasions to take sensitive files from GE.
More details available on pages 6-7 of the Criminal Complaint, in the section "Steganography Egress Summary". Including this conclusion:
