A judge has confirmed that US Departement of Defense funded Carnegie Mellon University to conduct research on the Tor hacking. Tor Project publicly accused the FBI of paying the experts at the Carnegie Mellon. The FBI has paid at least $1 million to the researchers to find a way to de-anonymize users under investigations of law enforcement. The research was funded by the Department of Defense (DoD) and the FBI obtained the information on alleged criminals after serving a subpoena to Carnegie Mellons Software Engineering Institute.”]
Source: http://securityaffairs.co/wordpress/44798/cyber-crime/dod-research-tor-hacking.html