Kenneth_Dieffenbach

Kenneth Dieffenbach CFE, CCEP

Deputy Assistant Inspector General for Investigations, US Department of Energy

Ken Dieffenbach serves as the Deputy Assistant Inspector General for Investigations at the U.S. Department of Energy OIG. He began his federal law enforcement career in 1996 with the Air Force Office of Special Investigations. From 2003 to 2021, he served in various special agent roles at the U.S. Department of Justice OIG. Ken enjoys long walks and talking about fraud risks with anyone who will listen.

Appearances