Research Fellow, National Institute for Defense Studies
2026.1– 2026.3
Visiting Research Fellow, Institute of Security and Global Affairs, Leiden University.
Selected Publications
Japanese
日本版「能動的サイバー防御（ACD）」を支える政府組織のデザイン ――インテリジェンス駆動型サイバーセキュリティ政策を支える２つの「出島組織」（Designing an Institutional Framework for Japan’s Active Cyber Defense (ACD): Two Strategic Government Outposts enabling Intelligence-Driven Cybersecurity Policy）
Cybersecurity and Active Cyber Defense (ACD): Project Commentary. vol.7, Tokio Marine dR Co., Ltd, January 2026[in Japanese]
米国サイバー軍の「ハントフォワード作戦（Hunt Forward Operations）」（2018年～2025年）――データ・歴史・実務の視点から捉える7年間の発展の軌跡（U.S. Cyber Command’s Hunt Forward Operations (2018–2025): A Seven-Year Analysis of Historical Evolution and Operational Practice）
NIDS Research ＆ Analysis, No.5 (National Institute for Defense Studies: December 2025) ISBN 978-4-86482-157-5. [in Japanese]
「顕教」と「密教」のあいだ ― 近年の欧米諸国による政府のサイバー安全保障体制改革の潮流
Between Secrecy and Publicity－Emerging Trends of National Cybersecurity Organizations Reforms in the Western Countries
Monthly Public Safety Review, Vol.30, No.11, 44-55, March 2024 [in Japanese]
NIDS Commentary, No.346, 1-28, August 2024 [in Japanese](Co-authored with Hayato Sasaki)
民主主義国家のサイバー軍による攻勢的サイバー作戦能力の整備と運用――米軍とオランダ軍における「二重の統合」の過程に着目した比較事例研究
Military Cyber Forces (MCF) as Integrator of Offensive Cyber in Democracies: Comparative Studies of the ‘Dual Integration’ mechanism through the U.S. and Netherlands MCF
Security and Strategy, Vol.4, No.2, 177-201, March 2024 [in Japanese]
パブリックアトリビューションの「拡散」と『多様化」 ――政策当局間の「多様化」の国際比較研究
Diffusion and Diversification in Public Attribution Policies of Cyber Operations: Comparative Attribution Politics in the US Instrumentation and EU Judicialization
Security and Strategy, Vol.3, No.2, 63-83, March 2023 [in Japanese]
書評論文：志田淳二郎著『ハイブリッド戦争の時代 ――狙われる民主主義』
Book Review: Shida Junjiro, Hybrid War: Enduring Threats to Democracy
The Journal of International Security, Vol. 50, No.2, 122-126, September 2022
ロシアのウクライナ侵攻と米英両国のインテリジェンス公表政策―情報機関の'ジレンマ'と2014年以降の安全保障協力の'系譜'
Weaponized Disclosure of Intelligence in the Russia-Ukraine War: Disclosure Dilemma and Hidden Inheritance from Post-2014 Transatlantic Security Cooperation
NIDS Commentary, No.224, 1-12, May 2022
国家のサイバー攻撃とパブリック・アトリビューション―ファイブ・諸国のアトリビューション連合とSolarWinds事案対応
Public Attribution to State-sponsored Cyber activities: Five Eyes' Attribution Coalition and SolarWinds Incident Response
NIDS Commentary, No.224, October 2023 [in English version: with citation updates from the original Japanese edition in May 2022]
Presentation and Conference Paper
Japanese
情報機関/法執行機関と市民社会の「OSINT コミュニティ」―マレーシア航空MH17 便撃墜事件をめぐる国際共同捜査の事例から （Knowledge Co-Production between Intelligence/Law Enforcement Agencies and Civil Society OSINT
The Japan Association of International Security（JAIS） Annual Convention 2024, Dec 7, 2024. [in Japanese]
CTIの生態系/市場と対峙する政府のインテリジェンス Adaptation of the Government Intelligence vis-a-vis Emergence of the Cyber-threat intelligence(CTI) ecosystems/market.
NIDS Workshop on the Opportunities and Challenges of Multi-stakeholder Governance on Cyber-threat intelligence, March 1, 2024 [In Japanese]
情報化時代の「コバート・アクション（covert action）」――国家による攻撃的サイバー作戦をめぐる課題の歴史的な連続性 Covert Action in the Information Age: Challenges of the State-sponsored Offensive Cyber Operations from a Historical Perspective.
Conference Paper presented at the Japan Association of International Relations（JAIR） Annual Convention 2022, Octber 30, 2022
サイバー・アトリビューションをめぐる「政策」と「政治」—2010 年代後半における各国政府の対処様式と目的の多様化 Policy and Politics of Cyber Attribution：Divergence by Internationalization and Marketization
Presentation at the Cyber Security Legislation Society, July 30, 2022
English
Disruptive Counter-Cyber Operations Leveraging Trilateral Assets in Indo-Pacific?
Conference Paper presented at CSBA Trilateral Strategic Dialogue, April 21, 2021
Teaching Experience / Other Professional Appointments
A Contributing Expert to the SNV Cyber Diplomacy Working Group ‘Cyber Norms on Attribution’.
National Institute for Defense Studies, September 2022 - Present
