The term ‘personal data’ is the entryway to the application of the General Data Protection Regulation (GDPR). Only if a processing of data concerns personal data, the General Data Protection Regulation applies. The term is defined in Art. 4 (1). Personal data are any information which are related to an identified or identifiable natural person.
The data subjects are identifiable if they can be directly or indirectly identified, especially by reference to an identifier such as a name, an identification number, location data, an online identifier or one of several special characteristics, which expresses the physical, physiological, genetic, mental, commercial, cultural or social identity of these natural persons. In practice, these also include all data which are or can be assigned to a person in any kind of way. For example, the telephone, credit card or personnel number of a person, account data, number plate, appearance, customer number or address