Cyber Law & Governance
UN Open Ended Working Group on the security of and in the use of information and Communication technologies (2021-2025)
The CIL has been an accredited observer to the UN OEWG process since Dec 2023. The OEWG was established pursuant to General Assembly resolution 75/240 adopted on 31 December 2020 with the mandate, among others, to further develop the rules, norms and principles of responsible behaviour of States and the ways for their implementation; and to continue to study how international law applies to the use of information and communications technologies by States. Danielle Yeow, CIL’s cyber law and governance programme represents the CIL at the meetings of the OEWG (6th-10th Session and intersessional session in May 2024) and has delivered statements on behalf of the CIL.
The links to CIL’s statements are available via:-
- 10th Session of the OEWG, Feb 2024
- 9th Session of the OEWG, Dec 2024
- 7th Session of the OEWG, Mar 2024
- 6th Session of the OEWG, Dec 2023
CIL’s Danielle Yeow was invited by the Chair of the OEWG to brief delegations on the topic of international law during the dedicated thematic session on 15 May 2024. The other invited experts were Mariana Salazar Albornoz (Prof of International Law, Universidad Iberoamericana); Skortsova Ekaterina (Expert of Military Academy of General Staff of the Armed Forces, Russian Federation) and Łukasz Kułaga, Associate Professor, Department of International and European Law, Cardinal Stefan Wyszynski University in Warsaw; Counsellor, Legal Treaty Department of the Polish Ministry of Foreign Affairs. The briefing was structured around the Chair's guiding questions and was followed by an interactive dialogue with delegations and experts.
Cyber law and policy dialogues and roundtable discussions
- Fourth Annual Symposium on Cyber and International Law 15 - 17 Sep 2025
- New! West Point Manual on International Law Applicable to Artificial Intelligence in Warfare (ongoing) See https://cil.nus.edu.sg/ai-law-and-governance/
- CIL Webinar on Civilian Hackers in State Conflicts: Legal Status, Rules of Engagement and Obligations of State, 30 April 2025. Recording and Webinar Report available at Civilian Hackers in State Conflicts: Legal Status, Rules of Engagement and Obligations of States - Centre for International Law
- Roundtable Discussion on “The Application of International Law in Cyber” (webinar) with CIL Distinguished Visitor, Mr. Huw Llewellyn, former Director of the Codification Division, UN Office of Legal Affairs, moderated by Danielle Yeow, 28 Nov 2024. https://cil.nus.edu.sg/event/roundtable-discussion-on-the-application-of-international-law-in-cyber/
- Supported and hosted regional workshop on Developing National Positions on International Law in Cyberspace, Singapore, 16 Oct 2024. CIL’s Danielle Yeow presented on “The importance and legal implications of national positions on international law in cyberspace”. https://cil.nus.edu.sg/activities/danielle-yeow-participated-at-the-roundtable-on-developing-national-positions-on-international-law-in-cyberspace-asia-pacific-perspectives/
- Co-convened Third Annual Symposium on Cyber & International Law, "Future Conflict: The International Law of Cyber and Information Convergence”, American University Washington College of Law, 23-25 Sept 2024 https://www.american.edu/wcl/impact/initiatives-programs/techlaw/events/future-conflict-the-international-law-of-cyber-and-information-convergence.cfm
- Co-convened, US-ASEAN Cyber and Digital Dialogue Series on “AI and Disinformation: Lessons from the US ASEAN experience”, with Columbia University’s School of International and Public Affairs and Centre of Excellence for National Security, S Rajaratnam School of International Studies, Nanyang Technological University, 25 June 2024
- Appointment of CIL’s Danielle Yeow to Advisory Board of a project on “The Handbook on Developing a National Position on International Law in Cyberspace A Practical Guide for States”, May 2024 Advisory Board appointment
- Cyber Dialogue: a conversation with Prof Makane Mbengue on the Common African Position on the Use of ICTs in cyberspace, with opening remarks from H.E. Ambassador Mostafa Mohamed, 11 April 2024
- Co-convened US-ASEAN Cyber and Digital Dialogue Series on “Emerging Technology – Implications for Cybersecurity”, with Columbia University’s School of International and Public Affairs and Centre of Excellence for National Security, S Rajaratnam School of International Studies, Nanyang Technological University, 13 Feb 2024
- Co-convened Second Annual Symposium on Cyber & International Law, “Cyber in War: Lesson from the Russia-Ukraine Conflict”, American University Washington College of Law, 20-22 Sep 2023. Danielle moderated a panel discussion on “regional perspectives” https://www.american.edu/wcl/impact/initiatives-programs/techlaw/events/second-annual-symposium-on-cyber-and-international-law-cyber-in-war-lesson-from-the-russia-ukraine-conflict.cfm
- Participated (Danielle Yeow) in a Closed Door Roundtable on Countermeasures in Cyberspace, Chatham House, 22 May 2023
- Convened Regional Workshop and Dialogue on “International Law in Cyberspace – Asian Perspectives and Current Trends” (in collaboration with Chatham House), Singapore, 18-19 Apr 2023
- Convened and co-facilitated (Danielle Yeow) a closed door dialogue with Government officials on International Law in Cyberspace, in collaboration with Chatham House, 26 April 2023
- Co-convened, US-ASEAN Cyber and Digital Dialogue Series on “Fostering Digital Cooperation Across the Pacific” , 22 Mar 2022
Capacity-Building
CIL researchers are actively engaged in capacity building on international law applicable to cyber operations , having conducted lectures and training to government officials and legal advisors convened under the:-
- UNODA Sponsorship programme, “Introduction to International Law – Approaches to Applicability in Cyberspace”, UNHQ, New York, 4 Dec 2024
- UN-SGP Cyber Fellowship, The Risks of Cyber Conflict and the Challenges of Applying International Law, Singapore, 5 Aug 2024
- UN-Singapore Cyber Fellowship Programme, panel discussion on “International Law” , 25 April 2024
- Convened Regional Workshop and Dialogue on “International Law in Cyberspace – Asian Perspectives and Current Trends” (in collaboration with Chatham House), Singapore, 18-19 Apr 2023
- UN-Singapore Cyber Fellowship programme (1-6 Aug 2022). The Fellowship, organised by the Cybersecurity Agency of Singapore and the UN Office for Disarmament Affairs, is the flagship programme under the UN-Singapore Cyber Programme. This inter-disciplinary programme, organised by the UN Office for Disarmament Affairs and the Cybersecurity Agency of Singapore, was attended by participants comprising of high level national cyber officials from UN member states.
Speaking Engagements
- Presenter (Danielle Yeow), on “International Law and Cyberspace” and “National Interpretations of International Law”, Workshop on Cyber Accountability: Navigating Norms and Legal Frameworks” organised by the Stimson Centre and ICT for Peace Foundation with the support of the Government of Canada, 23-25 April 25, Bangkok, Thailand.
- Moderator (Danielle Yeow), High Level Plenary panel “Tipping Point – Balancing Innovation and Security in the Digital Age”, Singapore International Cyber Week, 15 Oct 2024 https://www.sicw.gov.sg/events/15-oct/sicw-high-level-panels-opening-plenary/; CIL at SICW 2024
- Moderator (Danielle Yeow), OEWG side event, “Responding to Malicious Cyber Operations: Countermeasures in International Law and their role in Cyberspace” hosted by Royal Institute of International Affairs (Chatham House) and Permanent Mission of the Netherlands to the UN, New York, 10 Jul 2024 https://www.linkedin.com/posts/talita-dias-6b5086163_im-grateful-to-the-permanent-mission-of-activity-7217178258012864512-pAa8?utm_source=share&utm_medium=member_desktop
- Panellist (Danielle Yeow), OEWG side event on launch of Stimson Centre’s Report on “Advancing Accountability in Cyberspace: Models, Mechanisms and Multistakeholder Approaches”, hosted by the Stimson Centre, Permanent Mission of Canada to the UN and Permanent Mission of Switzerland to the UN, 9 Jul 2024, https://www.linkedin.com/feed/update/urn:li:activity:7217624989317967872?updateEntityUrn=urn%3Ali%3Afs_feedUpdate%3A%28V2%2Curn%3Ali%3Aactivity%3A7217624989317967872%29
- Panellist (Danielle Yeow), High Level Plenary panel “Cyber Multilateralism and the Race Against Change: Affirming the UN’s Relevance in the Digital Age”, Singapore International Cyber Week, 19 Oct 2023; CIL at SICW 2023
- Lecturer (Danielle Yeow) - "Malicious Cyber Operations: Countermeasures in International Law and their Role in Cyberspace" at the 63rd International School on Disarmament and Research on Conflicts) (ISODARCO) Course on "Peace and Stability in the Age of Militarized AI and Cyber-conflicts: New Challenges and Risks", 6-13 Aug 2025 in Volterra, Italy.
- Danielle Yeow spoke at Techlaw Fest 2025 https://cil.nus.edu.sg/activities/danielle-yeow-spoke-at-techlaw-fest-2025/
- Danielle Yeow spoke at an ASIL Abroad – Singapore panel on “Next Frontiers of International Law: Deep Seabed Mining, Outer Space and Cyber Governance”
Publications
- Advisory Board Member (Danielle Yeow), Handbook on Developing a National Position on International Law and Cyber Activities, May 2025. https://lnkd.in/d38iR7Qi
- Danielle Yeow, EJIL talk blog! Developing National Positions in Cyber – Legal and Policy Consideration, 30 May 2025. Available at EJIL: Talk! Link
