Abstract
Cyber space is a complex environment with many factors and dimensions that make it unstable and, at the same time, fascinating and interesting. The threats, the threat agents, the tools used, the actors, the targets, the exact geographical location where the attack started and the one where the most devastating effects occurred, the assessment of the damage produced but above all the real assignment of responsibilities: these are some of the main elements that make the cyber space arduous, multiform and articulated and, on the other hand, legitimize the interest of the states – but not only.