Yeah but how are they going to implement that while preserving e2e encryption? They would basically have to either handle all of it on the client, or send along

Yeah but how are they going to implement that while preserving e2e encryption? They would basically have to either handle all of it on the client, or send along a hash of whatever file was being shared encrypted with a key Apple controls. This seems ripe for abuse as it's going to allow for "phoning home" any match of an arbitrary file, and it's not going to be immediately clear if the content being searched for is legitimately CSAM or if it's being abused to search for something else.