30 June | New War Technologies and International Law: The Legal Limits to Weaponising Nanomaterials, with Kobi Leins
In our last seminar before the summer break, we welcome Kobi Leins for a talk on her new book New War Technologies and International Law: The Legal Limits to Weaponising Nanomaterials, with François Delerue as discussant.

This seminar will be held online via Zoom from 10:00-11:00 CET (!). Register here to join us for the seminar.

Keynotes and early bird tickets for our 2022 Conference on International Cyber Security

We are very excited to welcome the following keynote speakers for our 2022 annual conference: Renée DiResta (Stanford Internet Observatory), Keir Giles (Chatham House & Conflict Studies Research Centre) and Jason Healey (Columbia University).
Renée DiResta Keir Giles Jason Healey
Are you interested in joining us this November in The Hague? Conference tickets are now available (please note, in-person participation only) via our website, with special early-bird rates until 15 August and special rates for PhDs. More information...

Julia Voo's Visiting Fellowship

Julia Voo, Cyber Fellow and lead of the team behind Harvard Belfer's National Cyber Power Index, joined us for a visiting fellowship in The Hague in May. Read about her experience here.

Blog | Cyberspace and War in Ukraine: Prepare for Worse

Despite the few breakdowns—so far—in cyberspace beyond Ukraine, the risk of major cyber incidents has increased rather than diminished, write our postdoctoral researcher Monica Kaminska and Lucas Kello in a blog post for Lawfare.

Impression | The Hague Threat Intelligence Exchange (Hague TIX)

On 20 June 2022 in The Hague, the Netherlands, The Hague Threat Intelligence Exchange (Hague TIX) brought together Europe’s leading threat intelligence researchers for a day of talks on disruptive and destructive cyber operations. Below you'll find a mini-photo impression of the day.

Follow us on Twitter @HagueTIX for more impressions coming online later this summer and updates about #HagueTIX2023!

Closing the Gap 2022 | Responsibility in cyberspace: narratives and practice
On 8 and 9 June, our Program supported and joined EU Cyber Direct's Closing the Gap conference, which took place in Brussels. This two-day conference aimed to explore more rigorously the key concept of responsibility in international debates about the peaceful use of cyberspace, and featured several panel sessions and round tables discussing these and other topics. Continue reading...

Monica Kaminska Co-Organized ECCRI Workshop
Postdoctoral researcher and ECCRI board member Monica Kaminska co-organized ECCRI's first ever in-person workshop. The workshop focused on the impact of cyber operations during the war on Ukraine. Continue reading...

Monica Kaminska at European Cyber Agora
Monica Kaminska was one of the speakers at the workshop War on Ukraine: lessons for the EU's cyber diplomacy during the 2022 European Cyber Agora, which took place on 14-15 June 2022 in hybrid format. Continue reading...

Dennis Broeders at The Hague Conference on AI
Senior Fellow Dennis Broeders participated in one of the panels of the The Hague Conference on AI, being held on 12 and 13 May 2022 in The Hague, an annual conference with a focus on Peace, Law and Security in an international perspective. Continue reading...
Visiting Fellowships Program Re-opened!
We are very excited to open up our Visiting Fellowships program again after a pause of two years and welcome new Visiting Fellows again in The Hague!

Our program offers researchers and professionals with an interest and/or background in international cyber security at any stage of their career (from early-career researchers to established professionals) a short-term fellowship of one week up to three weeks at Leiden University's The Hague Campus. The fellowships cover travel and accommodation expenses.

More information on how to apply and previous fellows of the program can be found here.
Video | No Shortcuts: Why States Struggle to Develop a Military Cyber-Force, with Max Smeets
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Latest entries in our International Cyber Security Bibliography: Seminar Series Edition
In this month's newsletter, a list of the books covered so far in our monthly seminar series (some of the discussions are available on our YouTube channel):
  • Smeets, M. (2022). No Shortcuts: Why States Struggle to Develop a Military Cyber-Force, London: Hurst & Company.
  • Moore, D. (2022). Offensive Cyber Operations: Understanding Intangible Warfare, London: Hurst & Company.
  • Leins, K. (2022). New War Technologies and International Law: The Legal Limits to Weaponising Nanomaterials, Cambridge University Press.
  • Shires, J. (2021). The Politics of Cybersecurity in the Middle East, Hurst.
  • Boer, L. (2021). International Law As We Know It: Cyberwar Discourse and the Construction of Knowledge in International Legal Scholarship, Cambridge University Press.
  • Arquilla, J. (2021). Bitskrieg: The New Challenge of Cyberwarfare, Wiley.
Complete bibliography found here. Please send any additions or suggestions to

Our publication series

Vériter, S.L., M. Kaminska, D. Broeders & J. Koops (eds.) (2021). Responding to the COVID-19 'infodemic': National countermeasures against information influence in Europe.
Cristiano, F., D. Broeders and D. Weggemans (eds.) (2020). Countering cyber terrorism in a time of ‘war on words’: Kryptonite for the protection of digital rights?
Broeders, D., E. De Busser and P. Pawlak. (2020). Three tales of attribution in cyberspace: Criminal law, international law and policy debates
Roguski, P. (2020). Application of International Law to Cyber Operations: A Comparative Analysis of States' Views
Broeders, D., L. Adamson and R. Creemers. (2019). Coalition of the unwilling? Chinese and Russian perspectives on cyberspace
Broeders, D., S. Boeke and I. Georgieva. (2019). Foreign intelligence in the digital age. Navigating a state of 'unpeace'
About us

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 in the digital environment. We have international cyber security as our core focus, with an emphasis on cyber conflict ‘below the threshold’ and the role of emerging technologies. We study the development of international cyber conflict and the international governance thereof, more specifically: international law, norms, strategy and diplomacy.

We aim to be a hub for connecting academics, policy makers and other experts on a national, European and international level. To this end we organize workshops and conferences, host visiting fellows and engage with the global community of scholars, think tankers, NGOs, policy makers, the technical community and industry that engage with issues of international cyber security.

For more information, visit our website.
Copyright © 2022 The Hague Program on International Cyber Security / Institute of Security and Global Affairs, All rights reserved.

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