Previously Mr. Johnston worked in the private sector as a principal consultant at CrowdStrike, Inc as an incident response expert conducting engagements against nation state, criminal, and hacktivist organizations across a variety of industry sectors including the attack against the Democratic National Committee (DNC) in Washington D.C. in 2016. Prior to that, then Captain Johnston served as an officer in the United States Marine Corps. As a Marine Officer he was the Team Lead of 81 National Cyber Protection Team, Cyber National Mission Force and the Director of the Marine Corps Red Team. He is an accomplished leader and technical expert within the cyber security community. Mr. Johnston is a 2008 United States Naval Academy graduate with a degree in Information Technology.