Hal Martin was responsible for one of the largest leaks of U.S government secrets, after it was found that the former NSA contractor possessed up to 50 terabytes of classified government documents.

The U.S. government unsealed an indictment in April revealing that Assange had been charged for conspiracy to commit computer intrusion.

Assange is charged with violating the Computer Fraud and Abuse Act because he participated in the theft of documents, the Department of Justice says.