In the most recent iOS 15 preview, Apple rolled out some features that have many privacy advocates, including the Electronic Frontier Foundation (EFF) crying "backdoor." The features are part of Apple's effort to crack down on Child Sexual Abuse Material (CSAM).
https://www.techspot.com/news/90741-apple-feature-designed-protect-children-scanning-images-kicks.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/90741-apple-feature-designed-protect-children-scanning-images-kicks.html?utm_source=dlvr.it&utm_medium=blogger