A method for accessing a service supplied on a mobile terminal by an application server contributing to supplying the service. The method is implemented by the mobile terminal and includes: transmitting a request having a subscriber identifier of a subscriber of a subscription with a mobile operator, the subscriber identifier being based on a piece of information supplied by a security module of the mobile terminal, and inserted in the request without intervention of the user; receiving a response including an identification code relating to the subscriber identifier; transmitting an authentication request Including the identification code, the request being transmitted to an authentication server of the mobile operator; receiving an authentication response including an authentication code relating to the identification code; and transmitting a service access request including the authentication code to the application server.