Gregory Sisson

Chief Information Security Officer

Department of Energy

Mr. Sisson is currently serving as the United States Department of Energy’s Chief Information Security Officer (CISO).

Prior to joining DOE in 2018, he served as the Chief of Staff and the Deputy Director of Operations at Joint Force Headquarters Department of Defense Information Network (JFHQ-DODIN). JFHQ-DODIN is a component of United States Cyber Command, and oversees DOD information network operations and defensive cyberspace operations globally.

Before JFHQ-DODIN, he served in a number of roles at United States Joint Forces Command and the Joint Staff, training military organizations as they prepared for combat operations and was awarded the Civilian Global War on Terrorism Medal for his work. His last job was as a Cyberspace and Information Technology Training Capabilities Advisor for the Joint Staff J7 where he was instrumental in engaging stakeholders across the DOD and the interagency community to coordinate actions integral to the development, delivery and implementation of the DOD’s Cyber Strategy.

Prior to serving as a DoD Civilian, Mr. Sisson served over 20 years as a non-commissioned and commissioned officer in the United States Army where he led diverse organizations at multiple echelons. He retired as a Signal Officer in 2004.

Mr. Sisson completed his undergraduate work at the University of South Carolina Aiken where he earned a Bachelor of Arts in History and, in 2014 he earned a Master of Arts in National Security and Strategic Studies from the College of Naval Warfare in Newport, RI.