cement files it stole from the Justice Department's Bureau of Alcohol, Tobacco, Firearms and Explosives. The dumped files appear to include information on targets of past ATF investigations and analyses of their phone communications, according to a CNN review of the data.

A 2023 ransomware attack on the US Marshals Service targeted the subjects of their investigations. That same year, hackers breached a computer system the FBI's New York field office used in child sexual exploitation investigations, including a system used to store images related to the Jeffrey Epstein probe, according to people briefed on the matter.