A method for optimising the transfer of streams of secure data via an autonomic network between multiple information-producing users Pi and multiple information-consuming users Cj, where each includes at least one client and/or at least one server, a method in which the said autonomic network includes at least one central element responsible for distributing instructions for optimising the said transfer, at least one observation module responsible for measuring the characteristics of the streams to be transferred, and at least one optimisation module responsible for applying the said optimisation instructions, taking into consideration the measurements obtained by the observation module, and in which the clients and the servers are configured to exchange mutual authentication settings and security settings of the streams exchanged between the information-producing users Pi and the information-consuming users Cj and, after this negotiation, for checking the integrity of the transferred streams, and implementing protection of confidentiality according to the said security settings and according to the said authentication settings, a method characterised in that it includes the following steps: for each secure session between an information-producing user Pi user and an information-consuming user Cj: a) detecting by means of an optimisation module located geographically as close as possible to a server the initialisation of a secure session between a client and a server, b) introducing a wait period during the negotiation between the client and the server within the said optimisation module, c) establishing during said wait period a secure control channel between the said optimisation module and an autonomic agent associated with the client, d) exchanging non-persistent security settings between the said optimisation module and the said autonomic agent via the said secure control channel, e) applying between the autonomic agent and the optimisation module a security procedure initialised by the said non-persistent security settings, such that during an exchange of streams between the information-producing user Pi and the information-consuming user Cj the optimisation module having non-persistent security settings appears as the client to the server during the said session. for each secure session between an information-producing user Pi user and an information-consuming user Cj: a) detecting by means of an optimisation module located geographically as close as possible to a server the initialisation of a secure session between a client and a server, b) introducing a wait period during the negotiation between the client and the server within the said optimisation module, c) establishing during said wait period a secure control channel between the said optimisation module and an autonomic agent associated with the client, d) exchanging non-persistent security settings between the said optimisation module and the said autonomic agent via the said secure control channel, e) applying between the autonomic agent and the optimisation module a security procedure initialised by the said non-persistent security settings, such that during an exchange of streams between the information-producing user Pi and the information-consuming user Cj the optimisation module having non-persistent security settings appears as the client to the server during the said session. a) detecting by means of an optimisation module located geographically as close as possible to a server the initialisation of a secure session between a client and a server, b) introducing a wait period during the negotiation between the client and the server within the said optimisation module, c) establishing during said wait period a secure control channel between the said optimisation module and an autonomic agent associated with the client, d) exchanging non-persistent security settings between the said optimisation module and the said autonomic agent via the said secure control channel, e) applying between the autonomic agent and the optimisation module a security procedure initialised by the said non-persistent security settings, such that during an exchange of streams between the information-producing user Pi and the information-consuming user Cj the optimisation module having non-persistent security settings appears as the client to the server during the said session.