56As regards the public interest objectives that may justify a measure taken pursuant to Article 15(1) of Directive 2002/58, it is clear from the Court’s case-law, in particular the judgment of 6 October 2020, La Quadrature du Net and Others (C‑511/18, C‑512/18 and C‑520/18, EU:C:2020:791), that, in accordance with the principle of proportionality, there is a hierarchy amongst those objectives according to their respective importance and that the importance of the objective pursued by such a measure must be proportionate to the seriousness of the interference that it entails.
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