Mark Montgomery serves as the Senior Advisor to the Chairmen of the Cyberspace Solarium Commission, and was previously the Executive Director. He is also the Senior Director of the Center on Cyber and Technology Innovation and a Senior Fellow at the Foundation for Defense of Democracies. He previously served as Policy Director for the Senate Armed Services Committee under the leadership of Senator John S. McCain and completed 32 years as a nuclear trained surface warfare officer in the U.S. Navy, retiring as a Rear Admiral in 2017.