Gustavo Díaz Matey. Associate Professor in the Department of International Relations, Faculty of Political Science, Universidad Complutense deMadrid. He holds a PhD in Political Science from the UCM and an MA in Intelligence and Security Studies from the University of Salford, Manchester. He currently co-directs the Grupo Complutense de Estudios Internacionales y Estratégicos (GEIS-UCM). Between 2010 and 2019, he worked as an Intelligence Manager at ICEX Spain Export and Investment, and since 2012, he has been a member of the Editorial Board of the International Journal of Intelligence and Counterintelligence. He combines his academic work with participating in courses, seminars, and master's degrees at various Spanish universities. Throughout his career, he has specialized in intelligence studies and the analysis of the role of intelligence services in the 21st century.
He is the author of the books Theoretical Intelligence, Intelligence Services in the 21st Century, Practical Guide to Security and Defense, and Disinformation and Counternarratives in International Security: Cognitive Competition (2025). He has also published in specialized institutions and journals such as the Elcano Royal Institute, The International Journal of Intelligence and Counterintelligence, RIEAS, UNISCI, and CIBOB. His latest article, "New Horizons in Intelligence Cooperation: Spain and the Evolution of EU and NATO Intelligence," was published in May 2025. He has also participated in various research projects, including serving as principal investigator of the European CITEX project (Project number: 504146-LLP-1-ES-LEONARDO-LMP. Project Agreement number: 2009–2189/001–001), which aimed to bring intelligence practices closer to Spanish SMEs.