The free access to the Internet and the digitalization of incalculable materials such as books, music or feature films, as well as diverse contents, entails a constant danger for the rights belonging to the various authors, as well as the difficulty of arresting those who incur in computer piracy.It is therefore necessary to take a close look at the fundamental aspects of this criminal phenomenon, which is naturalized in such a way that it merits an analysis from the point of view of criminal law, after a review of the rules in force, both at the national level and in international treaties.