Portability is the right of the data subject to receive a subset of the personal data processed by a data controller concerning them, and to store those data for further personal use. The GDPR defines the right to portability in Article 20 (1) as follows: “The data subject shall have the right to receive the personal data concerning him or her, which he or she has provided to a controller, in a structured, commonly used and machine-readable format and have the right to transmit those data to another controller without hindrance from the controller to which the data have been provided.”