Carnegie Mellon University Attacked Tor, Was Subpoenaed By Feds (vice.com)
AmiMoJo writes: Back in November 2015 it was speculated that Carnegie Mellon University (CMU) helped the FBI attack the TOR network. Now, both the name of the university and the existence of a subpoena have been confirmed in a recent filing in one of the affected criminal cases: "The record demonstrates that the defendant's IP address was identified by the Software Engineering Institute ("SEI") of Carnegie Mellon University (CMU") [sic] when SEI was conducting research on the Tor network which was funded by the Department of Defense ("DOD")," an order filed on Tuesday in the case of Brian Farrell reads. Between January and July 2014, a large number of malicious nodes operated on the Tor network, with the purpose, according to the Tor Project, of deanonymising dark web sites and their users. The attack relied on a set of vulnerabilities in the Tor software—which have since been patched—and according to one source, the technique could unmask new hidden services within two weeks.
CMU was carrying out department of defense (DoD) funded study on TOR. FBI got wind of what data CMU may have gathered (not sure how) and issued subpoena for the data. Pursuant to the subpoena CMU handed over the data which contained among other things the IP address of a drug dealing suspect the FBI was interested in.