conflict law international
Conflict Law


Cyber Law International is a boutique international law firm dedicated to professional training, consultation, and research. We specialize in the international law governing state and non-state activities in cyberspace. Relying on our team of globally recognized international law scholars and practitioners, we offer our services globally to governments, international organizations, non-governmental organizations, technology companies, and others involved in international cyber affairs.


Courses, seminars, and workshops tailored to the specific needs of our clients, both in terms of content and duration. Globally renowned instructors and a practitioner-oriented approach.


Legal advice on the public international law applicable to cyberspace. Our services include consultation on the formulation of national policy regarding the legal aspects of cyberspace, operational issues, and proceedings before domestic and international courts and tribunals.


Production of various forms of written guidance, white/position/non-papers, memoranda of law, scholarly articles, and other written products regarding legal issues concerning cyberspace.

For services related to non-cyber issues involving international security affairs, such as maritime and space operations, peacetime military activities, counter-terrorism, peacekeeping, the use of force, and armed conflict — visit our sister firm Conflict Law International


Liis Vihul

Liis Vihul


Founder of Cyber Law International. Formerly senior analyst at the NATO Cooperative Cyber Defence Centre of Excellence (2008-2017).




Also Professor of International Law at the University of Reading, Charles H. Stockton Distinguished Scholar-in-Residence at the United States Naval War College, Francis Lieber Distinguished Scholar at United States Military Academy at West Point, Visiting Professor of Law at the University of Texas, and Senior Fellow at the NATO Cooperative Cyber Defence Centre of Excellence.




Also Chair of Public Law, in particular public international law, European law and foreign constitutional law, at the Europa-Universitat Viadrina and President of the International Society for Military Law and the Law of War.

Marko Milanovic

Marko Milanovic

Also Professor of Public International Law at the University of Nottingham and co-editor of EJIL: Talk!, the blog of the European Journal of International Law.

Robin Geiss

Robin Geiss

Also Professor of International Law and Security and Director of the Glasgow Centre for International Law and Security at the University of Glasgow, Swiss Chair of International Humanitarian Law at the Geneva Academy, and Visiting Professor at Sciences Po, Paris.

Rob McLaughlin

Rob McLaughlin

Also Professor of Military and Security Law and Director of the Australian Centre for the Study of Armed Conflict at the University of New South Wales Canberra at the Australian Defence Force Academy.

Gleider Hernandez

Gleider Hernandez

Also Professor of Public International Law at the Katholieke Universiteit te Leuven and the Open Universiteit of the Netherlands, and Member of the Board of the European Society of International Law.



Cyber Law International Nov 25

Each year, @DutchMFA @dfat & @CSAsingapore run two Int'l Law of Cyber Ops courses for ASEAN countries. Although we…

Cyber Law International Nov 19

CEO @liisvihul on autonomous technologies and international law👇

Cyber Law International Nov 13

Excited to be delivering the 3rd Int. Law of Cyber Ops Executive Course - certified by @UniofReading - for…

Cyber Law International Oct 28

Insightful comments by CLI’s @Schmitt_ILaw on the Finnish statement on the international law applicable in cyberspa…

Cyber Law International Oct 22

We're pleased to be delivering the int. cyber law content in this and next week's @Marshall_Center Int. Law and Pol…

Cyber Law International Oct 18

Timely piece on election interference by CLI’s @Schmitt_ILaw Stay tuned for Part III tomorrow 🗓

Cyber Law International

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