Art. 35(1)Where a type of processing, in particular using new technologies, is likely to result in a high risk to the rights and freedoms of natural persons, the controller shall, prior to the processing, carry out an assessment of the impact of the envisaged processing operations on the protection of personal data.high-risk trigger
Art. 35(2)The controller shall seek the advice of the data protection officer, where one is designated, when carrying out a data protection impact assessment.DPO consulted
Art. 35(3)An assessment is required in particular for: a systematic and extensive evaluation of personal aspects based on automated processing, including profiling, on which decisions are based that produce legal or similarly significant effects; large-scale processing of special category or criminal offence data; or systematic monitoring of a publicly accessible area on a large scale.mandatory cases
Art. 35(7)The assessment shall contain at least: a systematic description of the envisaged processing and its purposes; an assessment of necessity and proportionality; an assessment of the risks to the rights and freedoms of data subjects; and the measures envisaged to address those risks.minimum content
Art. 35(9)Where appropriate, the controller shall seek the views of data subjects or their representatives on the intended processing, without prejudice to the protection of commercial or public interests or the security of the processing.consultation
Art. 35(11)Where necessary, the controller shall carry out a review to assess whether processing is performed in accordance with the assessment, at least when there is a change in the risk represented by the processing.kept current
In short

Article 35 doesn’t prohibit anything. It is the discipline that has to happen before a high-risk processing operation goes live: a documented assessment of what the processing is, whether it’s necessary and proportionate, what could go wrong for the people affected, and what will be done about it. Article 35(1) requires this prior to the processing, not as a document written up afterwards to answer a regulator’s question.

The practical consequence is that an organisation can have a privacy policy, signed contracts with every vendor, and a folder of paperwork labelled “DPIA,” and still be in breach of Article 35 if none of it actually assessed the risk of the specific high-risk processing it deployed. Every fine below turns on exactly that gap: a system went live before its risk was ever genuinely assessed, or the document on file wasn’t a real assessment.