An identification device includes a ring incorporating at least one radiofrequency transponder which includes a microcontroller. The microcontroller includes at least one memory having data storage areas and at least one antenna configured to emit an electromagnetic field carrying identification information. The identification device further includes at least one photosensitive element positioned on an inner face of the ring. The photosensitive element is configured to generate a current when the photosensitive element is illuminated, in order to cause a deterioration of the memory area storing the data.

An identification device includes a ring incorporating at least one radiofrequency transponder which includes a microcontroller. The microcontroller includes at least one memory having data storage areas and at least one antenna configured to emit an electromagnetic field carrying identification information. The identification device further includes at least one photosensitive element positioned on an inner face of the ring. The photosensitive element is configured to generate a current when the photosensitive element is illuminated, in order to cause a deterioration of the memory area storing the data.