Operation Digital Piratez

Overview
Operation Digital Piratez was a year-long undercover operation by the Federal Bureau of Investigation's Boston Field Office, which has been supervised by the U.S. Attorney's Office for the District of New Hampshire.

On December 11, 2001, the FBI executed nine search warrants, and obtained consent for an additional three searches, on computers located across the country. During this investigation, undercover Special Agents of the Federal Bureau of Investigation successfully infiltrated several warez distribution organizations. This investigation targeted not only the warez sites and those who operated them, it also targeted the "cracking groups" specifically created for the purpose of pirating software so that it could be distributed over the Internet in violation U.S. copyright laws.

Source

 * U.S. Department of Justice, "Federal Law Enforcement Targets International Internet Piracy Syndicates" (Dec. 11, 2011) (full-text).