US Patent 7933582 Telecommunication system with improved confidentiality

A telecommunications system includes a personal item held by a user of the system, a first means of communication made available to the user and capable of communicating with the personal item and with a data transfer network, and a second means of communication capable of communicating with the data transfer network and belonging to an interlocutor of the user. The first means of communication may be triggered between a non-transparent operating mode and a transparent operating mode during which it is incapable of acting on data passing through it. The system makes it possible to guarantee the user that the confidential data he may send will not be altered or saved by the first means of communication in view of its illicit use.