3.

Processing by a processor shall be governed by a contract or other legal act under Union or Member State law, that is binding on the processor with regard to the controller and that sets out the subject matter and duration of the processing, the nature and purpose of the processing, the type of operational personal data and categories of data subjects and the obligations and rights of the controller. That contract or other legal act shall stipulate, in particular, that the processor: acts only on instructions from the controller; ensures that persons authorised to process the operational personal data have committed themselves to confidentiality or are under an appropriate statutory obligation of confidentiality; assists the controller by any appropriate means to ensure compliance with the provisions on the data subject’s rights; at the choice of the controller, deletes or returns all the operational personal data to the controller after the end of the provision of services relating to processing, and deletes existing copies unless Union law or Member State law requires storage of the operational personal data; makes available to the controller all information necessary to demonstrate compliance with the obligations laid down in this Article; complies with the conditions referred to in paragraph 2 and in this paragraph for engaging another processor.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-27 · Text as adopted (Official Journal); later amendments are not incorporated in this text.