Also known as: Pseudonymization
Pseudonymisation is the processing of personal data so it can no longer be attributed to a specific individual without separate additional information. The additional information must be protected by technical and organizational measures, and pseudonymised data generally remains personal data if re-identification is possible.
According to Article 4 of the GDPR, personal data may no longer be attributed to a specific data subject without recourse to additional information, provided that this additional information is kept separately and subject to technical and organisational measures to ensure that the personal data are not attributed to an identified or identifiable natural person.