53Lastly, under Article 5(1)(c) of the GDPR, which enshrines the principle of data minimisation, those data must be adequate, relevant and limited to what is necessary in relation to the purposes for which they are processed. That principle gives expression to the principle of proportionality (see, to that effect, judgment of 9 January 2025, Mousse, C‑394/23, EU:C:2025:2, paragraph 24 and the case-law cited).