Revelation of data by telephone without proving the identity of the interlocutor person

The responsible for the treatment can get himself with the user persons of the service in touch, telephonically, whenever the necessary actions|shares tendents to ensuring the identity of the interlocutor person are carried out. The fact that the user person provides the telephone number to get itself|himself|herself with her in touch, does not entail that he|she|it allows third any revelation of data, which constitutes a severe offense.