Lecture | Under Pressure: Jus in Bello Norms and Cyber Operations

Lecture | Under Pressure: Jus in Bello Norms and Cyber Operations

Lecture / 4 Apr 2019 / The Hague

On 4 April 2019, our Visiting Fellow Kubo Mačák will hold a lecture on modern cyber operations and the oldest branch of international law, the law of armed conflict.

Lucas Kello is Associate Professor of International Relations, serves as Director of the Centre for Technology and Global Affairs, and is also co-Director of the interdisciplinary Centre for Doctoral Training in Cyber Security at the Department of Computer Science at University of Oxford.

Duncan Hollis is the Laura H. Carnell Professor of Law at Temple Law School, Temple University. He is an elected member of the American Law Institute.

Bibi van den Berg is Professor of Cybersecurity Governance within the Faculty of Governance and Global Affairs at the Institute of Security and Global Affairs.

Location: Leiden University, Campus Den Haag, Wijnhaven - room 3.60, Turfmarkt 99, The Hague
Time: 15:00-16:30
Registration: free, via email (

This lecture will discuss the challenges that modern cyber operations pose to the oldest branch of international law: the law of armed conflict (jus in bello). It will first respond to the view advanced by some States that jus in bello does not apply in cyberspace at all. Endorsing instead a pro-applicability approach, the lecture will then consider specific issues at the intersection of jus in bello and cyber operations that arise already in peacetime; at the threshold of an armed conflict; and while an armed conflict is underway. Building on ongoing research conducted in collaboration with practitioners and military operators, the lecture will propose specific solutions to those challenges. Overall, the lecture should offer an answer to the central question whether the tipping point has been reached at which the norms of jus in bello are breaking under the pressure of cyber conflict.

Registration is free. Please register beforehand by sending an email to info@thehaguecybernorms.nl