However, the FBI‘s use of zero day exploits has been much more of a black box. The FBI has a long history of using various hacking tools to break into computers, and the judicial system has been an ever obedient „overseer“ in letting the FBI do damn close to whatever it pleases. But, now, for the first time, the FBI has publicly admitted to using zero day exploits. It comes out in a Washington Post profile of Amy Hess, who heads the Operational Technology Division (OTD) of the FBI.