"Could governments force Apple to add non-CSAM images to the hash list?
Apple will refuse any such demands. Apple’s CSAM detection capability is built solely to detect known CSAM images stored in iCloud Photos that have been identified by experts at NCMEC and other child safety groups. We have faced demands to build and deploy government-mandated changes that degrade the privacy of users before, and have steadfastly refused those demands. We will continue to refuse them in the future. Let us be clear, this technology is limited to detecting CSAM stored in iCloud and we will not accede to any government’s request to expand it."
(Reminder: if you don't trust what they say, you can't trust that they haven't been doing this for years already).
Seems like there is a way after all: https://daringfireball.net/linked/2021/08/09/apple-csam-faq
"Could governments force Apple to add non-CSAM images to the hash list?
Apple will refuse any such demands. Apple’s CSAM detection capability is built solely to detect known CSAM images stored in iCloud Photos that have been identified by experts at NCMEC and other child safety groups. We have faced demands to build and deploy government-mandated changes that degrade the privacy of users before, and have steadfastly refused those demands. We will continue to refuse them in the future. Let us be clear, this technology is limited to detecting CSAM stored in iCloud and we will not accede to any government’s request to expand it."
(Reminder: if you don't trust what they say, you can't trust that they haven't been doing this for years already).