This book is a tribute to Prof. Dr Udo Helmbrecht as a recognition for his dedication and untiring efforts to transform the European Union Agency for Cybersecurity (ENISA) into a globally recognised centre of excellence. It consists of a series of articles compiled by ENISA staff looking at...

Telecommunications are key in nowadays societies. They represent the backbone, the primary infrastructure based on which our society works and constitute the main instrument in allowing our democracy (and other EU core values such as freedom, equality, rule of law, human right) to function...