Method for the secure configuration and use of a system of modules for monitoring and/or controlling domestic, industrial or tertiary equipment, the system comprising a communicating module capable of receiving monitoring and control information from the other modules of the system and of communicating the received information to a centralised server via a first mode of communication, comprising steps of: - obtaining , by portable equipment associated with an installation operator, an identifier capable of encoding information containing a physical network address of the communicating module, - transmitting information containing said physical network address to said centralised server by said portable equipment via a second mode of communication; the method further comprising steps of: - obtaining installation geolocation information by the portable equipment , - transmitting the installation geolocation information by said portable equipment to the centralised server , via the second mode of communication, - verifying , by the centralised server , prior storage of said physical network address, - in the case of negative verification, authorising the configuration of said system of modules and recording said physical network address in a memory of the centralised server in association with installation operator identification information and with said received installation geolocation information; in the case of positive verification, extracting initial geolocation information recorded in said memory of the centralised server in association with said physical network address, and blocking the configuration of the system of modules when said initial geolocation information differs substantially from the received installation geolocation information, to within a predetermined tolerance level. - obtaining , by portable equipment associated with an installation operator, an identifier capable of encoding information containing a physical network address of the communicating module, - transmitting information containing said physical network address to said centralised server by said portable equipment via a second mode of communication; - obtaining installation geolocation information by the portable equipment , - transmitting the installation geolocation information by said portable equipment to the centralised server , via the second mode of communication, - verifying , by the centralised server , prior storage of said physical network address, - in the case of negative verification, authorising the configuration of said system of modules and recording said physical network address in a memory of the centralised server in association with installation operator identification information and with said received installation geolocation information; in the case of positive verification, extracting initial geolocation information recorded in said memory of the centralised server in association with said physical network address, and blocking the configuration of the system of modules when said initial geolocation information differs substantially from the received installation geolocation information, to within a predetermined tolerance level. <EOS>