PhD in Telecommunications Engineering from the Polytechnic University of Madrid (UPM, 2010) and postdoctoral researcher in computer network security at the University Carlos III of Madrid (UC3M). 

A professional with more than 18 years of experience, he has worked on advanced projects with European organisations, state security forces and multinationals (global 500 and IBEX-35). For more than a decade he has been involved in the design of secure architectures, technical security assessment (hacking), forensic analysis and security in mobile environments and wireless networks, leading technical teams, managing their budget in various areas of cybersecurity, and scientific research and innovation teams, in universities and private companies. He’s a lover of agile management and resource optimisation. 

Alfonso is a regular speaker at major security conferences (STIC CCN-CERT, DeepSec, HackInTheBox, Virus Bulletin, Ekoparty, Blackhat Europe, BSIDES Panama, RootedCon, 8.8, No cON Name, GSICKMinds, Cybercamp, Secadmin, JNIC, Ciberseg, X1RedMasSegura, Navaja Negra, T3chfest, etc.), has published more than 60 publications of impact in the area (IEEE, ACM, JCR, ...), patents, books and opensource cybersecurity tools. He is certified as CISA (Certified Information Systems Auditor), CISSP (Certified Information Systems Security Professional), CEHv8 (Certified Ethical Hacker), CHFIv8 (Computer Hacking Forensic Investigator), CES (Certified Encryption Specialist), OSWP (Offensive Security Wireless Attack), CriptoCert Certified Crypto Analyst and CCSK (Certificate of Cloud Security Knowledge). 

His work as a cybersecurity professional has been recognised by numerous academic and professional awards (Hall of fame Google, Security Bulletins Microsoft, ...), including in 2018 as one of the 25 most influential people in Spain in the field of cybersecurity and in 2019 as one of the 50 most relevant people in the protection of digital assets (TOP 50 Cybersecurity Blue Team). He has been interviewed by the main Spanish media and is often consulted on problems of social impact derived from cybersecurity and privacy. He is a lecturer in different cybersecurity master's degrees in public and private universities, as well as co-editor of the thematic network CRIPTORED, the oldest and most influential informative network on these issues in Spain and Latin America. This network has received recognition and awards from the most significant players in the cybersecurity community in Spain (RedSeguridad Magazine, SIC Magazine, Antonio Ropero-RootedCon Awards, etc.). 

In recent years he has combined his professional work with the launch of the start-up CriptoCert, a company dedicated to training and education in cryptography, publishing the world's first professional certification in this discipline.