Abstract: A method for secure identification of a user of a service comprises the steps of: providing an identification device (10) including a plurality of sensors (101, 102, 103, 104) for acquiring a plurality of actual physical parameter of the user, a processing unit (120), a memory (125) for storing reference physical parameters and a communication unit (150, 160) for exchanging signals with a provider of the service, acquiring the plurality of actual physical parameters of the user, comparing the plurality of actual physical parameter with stored reference physical parameters, producing an identification signal based on the step of comparing for enabling or disabling the use of the service by the user, transmitting the identification signal to the provider of the service.