EU Cyber Direct – EU Cyber Diplomacy Initiative supports the European Union’s cyber diplomacy and international digital engagements in order to strengthen rules-based order in cyberspace and build cyber resilient societies. To that aim, we conduct research, support capacity building in partner countries,…

A research program that focuses on the development and implementation of cyber norms.

A discourse on international cyber norms has emerged ever since the United Nations Group of Governmental Experts on Developments in the Field of Information and Telecommunications in the Context of International Security (UN GGE) recommended eleven norms on responsible state behaviour in cyberspace.

On 12 March 2019, KPN published the sixth edition of the European Cyber Security Perspectives. Sergei Boeke, researcher at the Institute of Security and Global Affairs, has written an article about Cyber ​​Warfare.

The debate about state behaviour in cyberspace may be set in the wrong legal key.

To make digital communication more secure, we need to tighten up the legal frameworks and identify the biggest cyber threats.

Cyber security is one of the critical challenges in our inter-connected world. Organizations are being constantly targeted by adversaries. Various critical systems become exposed on the Internet. Users can find that their data has been stolen from a company that they were not even aware of.

The Leiden Institute of Advance Computer Science (LIACS) in collaboration with the Institute of Security and Global Affairs (ISGA) have developed the minor Cyber Security to provide students with a mixture of technical and governance knowledge to set them on a path towards understanding cyberspace and…

C-SIDe project involves a broad selection of associates in solving cybersecurity problems. Security of software systems has emerged as a critical need in our interconnected society. Companies developing software products look for Security-by-Design approaches accommodating security into their software…

The executive master’s programme in Cyber Security of Leiden University takes a multidisciplinary approach that helps you develop effective and sustainable solutions for cyber risks and threats.

Taking the changing landscape of international cyber security and cyber conflict as a point of departure, The Hague Program on International Cyber Security focuses on the various modes of governance that states and other actors can bring into play to deal with and shape the strategic changes and challenges…

This paper examines cyber intelligence in the context of national and international security.

The research group Cyber Security Governance will provide cutting-edge academic research in the domain of cyber, where modern technology interacts with traditional concepts such as governance, sovereignty, law-enforcement, international relations and conflict.

This book offers a comprehensive analysis of the international law applicable to cyber operations, including a systematic examination of attribution, lawfulness and remedies. It demonstrates the importance of countermeasures as a form of remedies and also shows the limits of international law, highlighting…

This article traces the evolution of interpretations of international law and international cyber norms on responsible state behaviour in cyberspace by reassessing five major – and allegedly state-led – cyber operations: Stuxnet 2010; Belgacom 2013-2014, the Ukrainian power grid 2015, the US presidential…

This article on private active cyber defense by Dennis Broeders is part of a special issue of the Journal of Cybersecurity, based on a selection of contributions taken from the 2019 Conference on Cyber Norms organized by The Hague Program for Cyber Norms.

New article on popular culture influences on cybersecurity experts, available Open Access at Contemporary Security Policy, part of a special issue edited by dr. Myriam Dunn Cavelty.

Cyber agent technology and intelligence agencies is a project that is commissioned by Tracks Inspector, a Dutch company that develops innovative software.

The Netherlands Ministry of Defense and Ministry of Security and Justice have requested the Centre for Terrorism and Counterterrorism to complete a research project on cyber governance from a policy perspective. The results of this project will contribute to the deliverables of the fourth International…

James Shires, Assistant Professor at the Institute of Security and Global Affairs at Leiden University, co-authored this report on the GCC's cyber resilience with Joyce Hakmeh, Senior Research Fellow of Chatham House's International Security Programme.

Fabio Cristiano contributed two chapters to the Routledge Companion to Global Cyber-Security Strategy, edited by Scott N. Romaniuk and Mary Manjikian.

In this article for Studies in Conflict & Terrorism, the authors analyse the evolution and interplay of national policies and international diplomacy on cyber terrorism within and across the UNSC’s permanent five members and the UN process on cyber norms (GGE and OEWG).

How do humanitarian organisations adapt cyber incidents to their specific priorities and needs, and how can they adapt strategies of other organisations?

Chapter by Fabio Cristiano and Emilio Distretti for the volume The Aesthetics and Politics of the Online Self, edited by Donatella Della Ratta, Geert Lovink, Teresa Numerico, and Peter Sarram for Palgrave Macmillan.

DSE 2.0 concerns research on DSE techniques for complex dCPS

Cyber security is only for socially awkward nerds? Three alumni of the Cyber Security Academy prove the opposite.

Monica Kaminska, Dennis Broeders and Fabio Cristiano have contributed a chapter to the proceedings of the 13th International Conference on Cyber Conflict (CyCon 2021), which gathers 20 articles from the law, technology and strategy domains.

This collection includes six short policy-focused contributions exploring how legislation and policy on counter cyber terrorism unfold at the national level in the United States, the United Kingdom, China, Russia, France, and at the regional level of the European Union.

The project aims to develop an escape room-style game to teach students cyber crisis management and prepare them for real-world cybersecurity challenges

The financial sector is an appealing target for hackers. For that reason, lawmakers and regulators are going to great lengths to make the sector more resilient to cyber attacks. One recent measure was the introduction of the Digital Operational Resilience Act (DORA). This new EU regulation is extremely…

Jelena Vićić and Richard Harknett offer an analytical construct to better understand the mechanism by which cyber-enabled influence operations work

The United Nations Office for Disarmament Affairs (UNODA) has published the 2017 issue in their Civil Society and Disarmament series, titled Voluntary, Non-Binding Norms for Responsible State Behaviour in the Use of Information and Communications Technology: A Commentary. The series aims to provide…

Ilina Georgieva published an article in the journal Contemporary Security Policy on the norm-setting role of intelligence agencies.

Interview with prof.dr. Dennis Broeders in magazine De Veiligheidsdiplomaat (The Security Diplomat)

On Thursday, 17 September 2015, the latest project of the Leiden International Humanitarian Law Clinic (the IHL Clinic) on ‘Principles of International Humanitarian Law applied to Cyber Warfare’ was concluded and presented to the Netherlands Red Cross.

In this article, James Shires and Tatiana Tropina, assistant professors at the Institute of Security and Global Affairs, map the relationship between gender equality and cybersecurity governance as a component of good security sector governance (SSG). Here, it highlights the way in which cybersecurity…

On January 14th the executive Master’s programme Cyber Security started for the second time at the HSD Campus

Three decades ago, cyber-diplomacy did not exist. The interest in Information and Communication Technology (ICT) as a vector of change in international relations was limited to a few mostly technical organisations, and a restricted number of states.

Tracks Inspector, a Dutch company that develops innovative software, commissioned research to eLaw to investigate the use of cyber agent technology for intelligence agencies and secret services.

Building projects Real Estate Department

Leiden University is constructing a new building for the Faculty of Science in three phases, featuring state-of-the-art research and teaching facilities. The second phase was completed in 2024 and includes, among other things, a stunning entrance with a mathematical touch. With this development, the…

The Hague Program for Cyber Norms, a research program at the Institute of Security and Global Affairs, published its first policy brief, in which Dennis Broeders, Sergei Boeke and Ilina Georgieva explore the role of intelligence agencies in cyberspace and the (im)possibilities of oversight and regulation…

Leiden University is realising a new and sustainable building with state of the art research and educational facilities for the Faculty of Science: the Gorlaeus Building. The new sustainable building will stimulate academic cooperation and knowledge sharing.