This report is a part of a NATO CCD COE project that assembles a comprehensive overview of existing national organisational models for ensuring cyber security in NATO Nations that are Sponsoring Nations to the NATO CCD COE. The study outlines the division of cyber security tasks and responsibilities between different agencies, describes their mandate, tasks and competences, and the coordination among them. In particular, it describes the mandates of political and strategic management; operational cyber security capabilities and cyber incident management; military cyber defence; and cyber aspects of crisis prevention and crisis management. It also offers a summary of the national information society setting and e-government initiatives as well as the national cyber security strategy objectives in order to clarify the context for the organisational approach in a particular nation. The result is a series of country chapters, outlining national cyber security management structures by nation. The project contributes to awareness among NATO Allies about cyber security management in the varied national settings, thus supporting nations enhancing their own organisational structure, encouraging the spread of best practices, and contributing to the development of cooperation between different national institutions in NATO nations. The NATO Cooperative Cyber Defence Centre of Excellence (NATO CCD COE) is an international military organisation accredited in 2008 by NATO’s North Atlantic Council as a ‘Centre of Excellence’. Located in Tallinn, Estonia, the Centre is currently supported by the Czech Republic, Estonia, France, Germany, Hungary, Italy, Latvia, Lithuania, the Netherlands, Poland, Slovakia, Spain, the United Kingdom and the USA as Sponsoring Nations and Austria as a Contributing Participant. The Centre is neither part of NATO’s command or force structure, nor is it funded by NATO. However, it is part of a wider framework supporting NATO Command Arrangements. NATO CCD COE’s mission is to enhance capability, cooperation and information sharing between NATO, NATO member states and NATO’s partner countries in the area of cyber defence by virtue of research, education and consultation. The Centre has taken a NATO-oriented interdisciplinary approach to its key activities, including academic research on selected topics relevant to the cyber domain from the legal, policy, strategic, doctrinal and/or technical perspectives, providing education and training, organising conferences, workshops and cyber defence exercises, and offering consultations upon request. For more information on NATO CCD COE, visit the Centre’s website at http://www.ccdcoe.org. 2