Operation Pacifier
Operation Pacifier is or was a large scale hacking campaigning from the launched in 2015 investigating criminal activity on the . It was the largest such operation since Operation Torpedo.
Malware known to as (NITs) were used to discover the real IP addresses of users from a seized website called .
The international nature of the operation raised a number of legal questions about the FBI’s international jurisdiction and is the subject of ongoing legal and journalistic investigations.