The communication of anonymized information from the Municipal Register to a public company for the development of a predictive tool in the field of social services would not require a legal basis to legitimize it, as the legislation does not apply in these cases of data protection. However, it is necessary to ensure that the anonymization process applied guarantees that the physical persons affected cannot be identified by third parties without disproportionate efforts, as well as to assess the risks of any subsequent re-identification of these persons and, where appropriate, adopt the appropriate measures to mitigate it.