A method is provided for the transmissions of information between at least a first and a second communication means. The method includes in saving at least one set of information in an intermediate element. The method also includes defining a plurality of client groups, using an identifier in order to designate at least one group of clients that are authorized to access the information set, and at least one filtering step, which is intended to prevent a user that does not belong to the group from accessing the information. The method enables the integrity of the contained in the intermediate element to be substantially secured, by selecting clients that are authorized to access the information.