In order to conduct its diverse range of missions, ANSSI is organised into four departments.

Bruno Marescaux, Head of Department, Operational Centre

portrait B. MarescoBruno Marescaux began his career in 2001 in French defense procurement agency DGA (direction générale de l’armement – DGA) of the Ministry of Defence. In 2005, he joined the direction responsible for testing in Paris.
In 2007, he reached the position of rapporteur for the committee responsible for the drafting of the White Paper on Defence and National Security, before joining, the General Secretary for National Defence with responsibility for international business and intelligence.
In 2013, he joined the ANSSI as Assistant to the Deputy Head of the Cybersecurity Operational Centre (COSSI), before succeeding him in 2016.


Vincent Strubel, Head of Department, Expertise.

portrait V. StrubelCorps des Mines. He has pursued his career entirely within ANSSI. He held the position of R&D engineer from 2005, prior to being appointed team leader in 2009, at the head of a team of ten individuals conducting research and prototyping activities in a cutting edge technical field. From 2012 onwards, he continued this activity as head of the research division within the department with around fifty staff members. He has held the position of Head of Department since 2014.



Marc Yolin, Head of Department, Secure Information Systems.



Yves Verhoeven, Head of Department, External Relations and Coordination.

portrait Yves VerhoevenA graduate of the École Normale Supérieure, PhD in computer science, Yves Verhoeven is Chief Engineer of the Corps des Mines. After beginning his career in 2005 in the Ministry of Foreign Affairs, he joined the General Secretary for National Defence in 2007 and the ANSSI in 2009. He was successively researcher, project manager, chief information security officer, program officer, Head of International Relations and digital advisor to the Executive Director. Yves Verhoeven thus covered a wide range of activities in connection with the security of digital and cyber defense. He holds the post of Head of Department for External Relations and Coordination since January 2016.