According to the Justice Department, 51-year-old Harold Thomas Martin, who was employed by Booz Allen Hamilton — the company responsible for most of the NSA's most sensitive cyberoperations — faces up to 10 years in prison for theft of government property and one year for removing classified material. The materials he is believed to have stolen are "critical to national security", Justice Department officials added.
 

Among the classified documents…were six classified documents obtained from sensitive intelligence and produced by a government agency in 2014," the release stated. "These documents were produced through sensitive government sources, methods and capabilities, which are critical to a wide variety of national security issues. The disclosure of the documents would reveal those sensitive sources, methods, and capabilities."