Stefan Soesanto

Stefan Soesanto

IFW C 47.1
Haldeneggsteig 4
8092 Zürich
Switzerland

Phone: +41 44 632 08 37
Mail:

Stefan Soesanto is a Senior Researcher at the Center for Security Studies (CSS) at ETH Zurich. He leads the Cyberdefense Project and is the Co-Team Head of the Risk and Resilience Team.

Prior to joining CSS, he was the Cybersecurity & Defense Fellow at the European Council on Foreign Relations (ECFR) and a non-resident James A. Kelly Fellow at Pacific Forum CSIS. At ECFR, he designed and held cyber wargame exercises in cooperation with Microsoft, and organized a closed Cybersecurity and Defense conference in Odense together with the Center for War Studies at the University of Southern Denmark and the Office of the Danish Tech Ambassador.

Stefan also served as a Research Assistant at RAND's Brussels office, co-authoring reports for the European Parliament Committee on Civil Liberties, Justice and Home Affairs (LIBE), the European Network Information Security Agency (ENISA), and Dutch Ministry of Security and Justice.

Stefan holds an MA from Yonsei University (South Korea) with a focus on security policies, and international law, and a BA from the Ruhr-University Bochum (Germany) in political science and Japanese.

Selected Publications

Soesanto, Stefan (2024) ‘The Ukrainian Way of Digital Warfighting: Volunteers, Applications, and Intelligence Sharing Platforms,’ Cyberdefense Report, Center for Security Studies (CSS), ETH Zürich.

external page Soesanto, Stefan (2024) ‘Kyber Sprotyv: Ukraine’s Spec Ops in Cyberspace?’ Lawfare Blog.

external page Soesanto, Stefan (2023) 'Ukraine’s Counter-Hybrid Campaigns in Cyberspace', The Hague Centre for Strategic Studies.

external page Soesanto, Stefan (2023) 'Ukraine's IT Army', International Institute for Security Studies, Survival Vol. 65, Issue 3. Preprint Link

external page Soesanto, Stefan (2022) 'EU declarations, DDoS attacks, and the erosion of norms and rules for State behaviour in cyberspace', Real Instituto Elcano.

Soesanto, Stefan (2022) ‘The IT Army of Ukraine - Structure, Tasking, and Ecosystem', Cyberdefense Report, Center for Security Studies (CSS), ETH Zürich.

external page Soesanto, Stefan (2022) ‘Are Hacktivist Data Dumps Helping Ukraine?’, The National Interest.

external page Soesanto, Stefan (2022) 'Cyber Deterrence Revisited', Air University Press, CPP-8.

external page Soesanto, Stefan (2021) 'The Limits of Like-​​mindedness in Cyberspace', Elcano Royal Institute.

external page Soesanto, Stefan (2021) ‘The 19th of July: Divided or United in Cyberspace? From the EU and NATO to Five Eyes and Japan’, Elcano Royal Institute.

Soesanto, Stefan (2021) 'A Digital Army: Synergies on the Battlefield and the Development of Cyber-​ Electromagnetic Activities (CEMA)', CSS Cyberdefense Report, Center for Security Studies (CSS), ETH Zürich.

external page Soesanto, Stefan (2021) 'When Does a ‘Cyber Attack’ Demand Retaliation? NATO Broadens Its View', Defense One.

external page Soesanto, Stefan (2021) 'Mapping of Cyber Doctrines: Outward Defense – Comparing the Cyber Defense Postures of Japan, the Netherlands and the United States in Peace Time', Konrad-​Adenauer-Stiftung e. V. Facts and Findings 449: 1-9.

external page Soesanto, Stefan (2021) 'The Dr. House Approach to Information Warfare', Cyber Defense Review.

Soesanto, Stefan (2021) 'Terra Calling: Defending and Securing the Space Economy', Cyberdefense Report, Center for Security Studies (CSS), ETH Zürich.

external page Soesanto, Stefan (2020) 'Hacking Back Unpacked: An Eye for an Eye? Not so Fast', Elcano Royal Institute.

Soesanto, Stefan (2020) 'Japan’s National Cybersecurity and Defense Posture', CSS Cyberdefense Report, Center for Security Studies (CSS), ETH Zürich.

external page Soesanto, Stefan (2020) 'Europe's Incertitude in Cyberspace', Lawfare Blog.

external page Soesanto, Stefan (2020) 'The Case Against EU Cyber Sanctions for the Bundestag Hack', Lawfare Blog.

external page Soesanto, Stefan (2020) 'Bundestag Hack Redux: More Smoke Than Mirrors', Council on Foreign Relations.

external page Soesanto, Stefan (2020) 'Wrong Turn or Right Lane? Defending Forward Against Cybercriminals Abroad', Real Clear Defense.

external page Soesanto, Stefan (2020) 'Cyber Terrorism. Why it Exists, Why It Doesn’t, and Why It Will', Elcano Royal Institute.

Soesanto, Stefan (2020) 'A One-​​sided Affair: Japan and the People's Republic of China in Cyberspace', CSS Cyberdefense Hotspot Analysis, Center for Security Studies (CSS), ETH Zürich.

Soesanto, Stefan (2019) 'The Evolution of US Defense Strategy in Cyberspace (1988 – 2019)', CSS Cyber Defense Trend Analysis, Center for Security Studies (CSS), ETH Zürich.

external page Soesanto, Stefan (2018) 'In Cyberspace, Governments Don't Know How to Count', Defense One.

external page Soesanto, Stefan (2018) 'An Alliance Too Far: The Case against a Cyber NATO', Defense One.

external page Soesanto, Stefan (2018) 'No Middle Ground: Moving on from the Crypto Wars', European Council on Foreign Relations.

external page Soesanto, Stefan (2017) 'Attribution is What States Make of It', European Council on Foreign Relations.

external page Van der Meulen, Nicole; Gunashekar, Salil;Soesanto, Stefan; Jo,Eun A.(2015) 'Good Practice Guide on Vulnerability Disclosure: From Challenges to Recommendations', RAND Corporation for ENISA.

external page Van der Meulen, Nicole;Soesanto, Stefan;Jo, Eun A. (2015) 'Cybersecurity in the European Union and Beyond: Exploring Threats and Policy Responses', RAND Corporation for the European Parliament.

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