biography

Dr Brianna Rosen is Executive Director of the Oxford Programme for Cyber and Technology Policy at the Blavatnik School of Government, University of Oxford. She is also a Senior Fellow and Director of the Artificial Intelligence and Emerging Technologies Initiative at Just Security, a law and policy forum based at New York University School of Law.

Her areas of expertise include AI and emerging technologies, technology ethics, AI governance, and global security. Her current research focuses on securing advanced AI systems and the national security implications of AI. She is the editor of the forthcoming volume Perpetual War and International Law: Enduring Legacies of the War on Terror with Oxford University Press. She has published commentary in Foreign Policy, Just Security, Slate, and War on the Rocks, and is frequently cited in leading media outlets.

Prior to joining the Blavatnik School, Dr Rosen served in the US government for more than a decade, including positions at the White House National Security Council and the Office of the Vice President, where she advised on national security, technology, and foreign policy matters. She has held research appointments at the Oxford Institute for Ethics, Law and Armed Conflict, the Woodrow Wilson International Center for Scholars, and the Middle East Institute in Washington, DC.

Dr Rosen received her DPhil from the University of Oxford, Christ Church College, where she was a Clarendon Scholar. She completed an MPP with distinction at the University of Oxford, St Antony’s College, as a Public Service Scholar. She also holds an MA in political science and mathematics, as well as a BA in international relations.

For more information, visit Brianna Rosen’s personal website.

Publications

 

Perpetual War and International Law: Enduring Legacies of the War on Terror, ed. Brianna Rosen (Oxford University Press, 2026). 
After Mythos: A National Security Playbook for AI,” with Joe O’Brien and Chris Covino, Institute for AI Policy and Strategy, 14 May 2026.
Cyberwar’s New Frontier: How AI Agents Will Threaten Global Security,” Foreign Affairs, 16 April 2026. 
AI Decision Support Systems: A Neglected Source of Military AI Risk,” Institute for AI Policy and Strategy, 9 April 2026. 
The Trump Administration Has a Cyber Strategy. Does it Have a Plan?,” with Teddy Nemeroff, Just Security, 19 March 2026. 
Highly Autonomous Cyber-Capable Agents: Anticipating Capabilities, Tactics, and Strategic Implications,” with Jam Kraprayoon, Shaun Ee, Yohan Matthew, Aditya Singh, Christopher Covino, and Asher Brass Gershovich, Institute for AI Policy and Strategy, 11 March 2026
Expert Comment: The Pentagon-Anthropic dispute reflects governance failures - with consequences that extend well beyond Washington,” University of Oxford, 6 March 2026. 
Verification for International AI Governance,” with Ben Harack and Robert Trager, et al., Oxford Martin AI Governance Initiative, 3 July 2025

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