President, Responsive Technology Partners in Atlanta, GA

Professor of Strategic Studies at Johns Hopkins University

Professor of Computer Science at Johns Hopkins University

Senior Fellow for National Security at Council on Foreign Relations in New York, NY

Board Member at Electronic Frontier Foundation

Nonresident fellow - Center for Security, Strategy, and Technology and the Artificial Intelligence and Emerging Technology Initiative at Brookings Institution

Distinguished Professor in Cybersecurity, Technology, and Society at Dartmouth College

Senior Fellow at Center for a New American Security

Fellow - Cyber Policy Initiative at Carnegie Endowment for International Peace

Distinguished Fellow with the South Asia Program at Stimson Center

Visiting Scholar in International and Public Affairs at Brown University, Watson Institute for International and Public Affairs

Senior Fellow at Center for International Cooperation at NYU in New York, NY

Co-director and a senior fellow of the Nuclear Policy Program at Carnegie Endowment for International Peace

Director at Public Citizen

Health Services Researcher at Public Citizen

Professor at UCLA, School of Medicine