Re: How do I stop iPhone from scanning and categorizing my photos for the "For You" section?
That's not anything to be concerned about. Apple and their employees don't care about your photos. I give 38 apps permission to access my photos. Not worried about it. Here's what a former Apple Genius said:
"Any data that is stored in iCloud is encrypted, but Apple holds the encryption keys and thus can decrypt all iCloud content (including iOS backups) at will. In fact, this has been done in several high profile cases. In the San Bernadino shooter case, the FBI made the mistake of changing the iCloud password associated to the shooter’s device, which had the effect of preventing future device backups from occurring. Had that not happened, the phone could have been backed up to iCloud and Apple would have been able to decrypt and share the backup with the FBI."