See also Articles 7 and 8 of the Charter of Fundamental Rights of the European Union (https://www.europarl.europa.eu/charter/pdf/text_en.pdf). (side note, the ECHR is why European countries have strong privacy laws since the '70s.)

The EDPS recently said that under the Charter, the infamous “Chat Control” would always be illegal in the EU: https://www.euractiv.com/section/law-enforcement/news/eu-wat....