This seems to refer to the concept of "data minimisation", that can be seen as an important concept in the GDPR. See article 5 § 1.c https://eur-lex.europa.eu/l

This seems to refer to the concept of "data minimisation", that can be seen as an important concept in the GDPR. See article 5 § 1.c https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32016R0679&from=FR#d1e1807-1-1 https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CEL...