Article 25 – Data protection by design and by default

Taking into account the state of the art, the cost of implementation and the nature, scope, context and purposes of processing as well as the risks of varying likelihood and severity for rights and freedoms of natural persons posed by the processing, with particular regard to the lists referred to in Article 35(4) and (5), the controller and the processor shall, both at the time of the determination of the means for processing and at the time of the processing itself as applicable, implement, in an effective manner, appropriate technical and organisational measures, such as pseudonymisation, which are designed to implement data-protection principles, such as data minimisation, to integrate the necessary safeguards into the processing in order to meet the requirements of this Regulation and protect the rights of data subjects.

The controller and the processor shall implement appropriate technical and organisational measures for ensuring that, by default, only personal data which are necessary for each specific purpose of the processing are processed. That obligation applies to the amount of personal data collected, the extent of their processing, the period of their storage and their accessibility. In particular, such measures shall ensure that by default personal data are not made accessible without the individual's intervention to an indefinite number of natural persons.