Abstract: System for protecting a group of location of a network by anticipating an act of vandalism. A monitoring apparatus connected to detection apparatus on the location in order to establish in real time a modification of the state of a location as a result of an act of vadalism, a storage apparatus for storing the fixed characteristics of each location, a processing apparatus and a display for displaying the result supplied by the processing apparatus. This processing apparatus is able to communicate with the monitoring apparatus so that it can be informed in real time of an act of vandalism affecting a location, store the characteristics of the vandalized locations, determine the trajectories of the vandals, extrapolate said trajectories to forecast a location liable to be vandalized and inform an operator by supplying using the display means information in such a way as to protect a location liable to be vandalized by anticipating the trajectory of a vandal.