The mDNI will allow users to quickly identify and secure access any web page that identifies the ID number, especially banking, utilities or public institutions (municipalities, tax authorities, etc.);however, it will not be used as a digital signature.
The project is in development and conforms to all requirements of the Data Protection Law. Telefonica and its partner Secuware, have begun talks with the government, financial institutions and other mobile companies to implement the mDNI worldwide before its official release.
Source: El País