According to the indictment, Martin was hired as a private contractor by at least seven companies and worked for multiple government agencies since 1993. His position granted him various security clearances and access to highly-sensitive government information, the indictment noted.

At NSA, he worked at its hacking unit and took material that included most, if not all, of the agency’s hacking tools – the same tools that later ended up on sale on the Internet by a group calling itself Shadow Brokers, The New York Times reported.