The storage capacity of the medium makes it possible to use it not only as a temporary space for exchanges but also as a longterm backup. In one embodiment, the firmware of the medium can count the number of interactions (reads and writes) but also the time elapsed between them, in order to initiate an automatic “self erasing” deletion.

Depending on the embodiment chosen, certain acts, actions, events, or functions of each of the methods described herein may be performed or occur in a different order than that in which they were described, or may be added, merged, or may not be performed or occur, as the case may be. In addition, in some embodiments, certain acts, actions, or events are performed or occur concurrently and not successively.

Although described via a number of detailed exemplary embodiments, the proposed control method and the device for implementing an embodiment of the method comprise various variants, modifications, and improvements which will be apparent to those skilled in the art, it being understood that these various variants, modifications, and improvements fall within the scope of the invention, as defined by the following claims. In addition, various aspects and features described above may be implemented together or separately, or may be substituted for one another, and all of the various combinations and sub-combinations of the aspects and features fall within the scope of the invention. In addition, some of the systems and devices described above may not incorporate all the modules and features described for the preferred embodiments.