The information received by the organization that formulates the consultation and that is not necessary for the exercise of its functions has to be canceled, in accordance with what establishes the article 4.5 of the LOPD. The identification and authentication to correlate electronically with a tributary organization based on the NIF and the personal identification code of the card of sanitary identification (CIP-TIS) sent by the CatSalut, it does not offer enough guarantees for the security of the information.