Summer 2025 Series

Greg is a co-founder and Chief Operating Officer of CI-Discern, a professional services and solutions firm focused on improving Critical Infrastructure cybersecurity and resilience. Founded by senior executives from the government and private sector, CI-Discern is committed to working with critical infrastructure owners and operators to enhance governance, oversight, risk management and strategic capabilities.  

Greg is a seasoned executive-level cybersecurity leader with extensive experience leading, developing, and implementing cybersecurity initiatives, programs, and policies in positions of increasing responsibility at the department level for the US Departments of Energy and Defense.   

Prior to launching CI-DISCERN, Greg served as a Managing Director in EY’s Energy Cybersecurity Consulting practice. While there, Greg served as the cybersecurity field of play lead on multiple power and utilities, oil and natural gas and global manufacturing accounts assisting CISO’s in maturing and transforming their cybersecurity programs.  

Greg culminated his nearly 40 years of public service in 2022 as the US Department of Energy (DOE) Chief Information Security Officer where he was responsible for Department wide cybersecurity operations, risk management and compliance enabling the Departments support to energy, environmental management, transformative science, and nuclear security missions.

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) and numerous other senior roles across the Department. 

Greg is a proud military veteran, having 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.

Greg 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.  He resides with his wife in Alexandria, VA.