In 2013, the FBI shut down privacy-focused email service TorMail, and searched its server's contents. It turns out, the DEA wanted some access too.
Finally, the warrants and affidavits related to the FBI’s use of malware on TorMail have been unsealed.
The American Civil Liberties Union is trying to unseal a docket sheet relating to FBI hacking.
The FBI supposedly targeted specific users, but malicious code was deployed before they even logged in.