Judgment of the Court (Grand Chamber) of 4 October 2024.#ND v DR.#Reference for a preliminary ruling – Protection of personal data – Regulation (EU) 2016/679 – Chapter VIII – Remedies – Medicinal products marketed by a pharmacist on an online platform – Action brought before the national civil courts by a competitor of that pharmacist on the basis of the prohibition of unfair commercial practices for infringement by the pharmacist of the obligations laid down by that regulation – Standing to bring proceedings – Article 4(15) and Article 9(1) and (2) – Directive 95/46/EC – Article 8(1) and (2) – Concept of ‘data concerning health’ – Conditions for the processing of those data.#Case C-21/23.