The Court of Justice unitarily interprets the law of the European Union by way of the preliminary reference procedure. Social networks make available to every person possibilities of individual communication or in communities. The meeting between the Court of Justice and the social networks is not new, but now the European Court has consolidated the interpretation of the notion of controller within the regulations on personal data protection.
The administrator of a page hosted by a social network is a controller within the meaning of European legislation.
The study attempts to correlate the main attributes of the controller with the functions of the administrator of a page hosted by a social network and to deepen the liability of this administrator.