Classified information stolen by a United States federal contractor, who was charged with espionage last month, includes the true identities of American intelligence officers posted in undercover assignments abroad, according to court documents. In August of this year, Harold Thomas Martin III, was arrested by the Federal Bureau of Investigation on charges of stealing government property and illegally removing classified material. Martin, 51, served as a US Navy officer for over a decade, where he acquired a top secret clearance and specialized in cyber security. At the time of his arrest earlier this year, he was working for Booz Allen Hamilton, one of the largest federal contractors in the US. Some media reports said Martin was a member of the National Security Agency’s Office of Tailored Access Operations, described by observers as an elite “hacker army” tasked with conducting offensive cyber espionage against foreign targets.