2025 Fall Americas

Mark is the Senior Director of the Center on Cyber and Technology Innovation and a Senior Fellow at the Foundation for Defense of Democracies. He serves as the Executive Director of Cybersolarium.org, a non-profit organization which works to implement the recommendations of the Cyberspace Solarium Commission, where he was Executive Director from 2019 to 2021. Previously, Mark was Policy Director of the Senate Armed Services Committee for Senator John S. McCain.

Mark completed 32 years as a nuclear-trained surface warfare officer in the U.S. Navy, retiring as a Rear Admiral.  His flag officer assignments included Director of Operations at U.S. Pacific Command; Commander of Carrier Strike Group 5; and Deputy Director, Plans, Policy and Strategy at U.S. European Command.