Eric Rosenbach is Co-Director of the Harvard Kennedy School's Belfer Center for Science and International Affairs and a Kennedy School Public Policy Lecturer. Rosenbach previously served as the Pentagon's Chief of Staff from 2015-17 and Assistant Secretary of Defense for Global Security, responsible for leading all aspects of the Department's cyber activities and other key areas of defense policy. On Capitol Hill, Rosenbach served as national security advisor for then-Senator Chuck Hagel. In the private sector, Rosenbach worked as the Chief Security Officer for a large European telecommunications firm. He also led the cybersecurity practice of a global management consulting firm, advising the executives of Fortune 500 companies on strategic risk mitigation strategies. Rosenbach is a former Army intelligence officer and Commander of a telecommunications intelligence unit. He has co-authored several books on national security. He was a Fulbright Scholar. He has a JD from Georgetown, an MPP from Harvard and is a proud graduate of Davidson College.