I'm really conflicted about this. For context, I deeply hate the abuse of children and I've worked on a contract before that landed 12 human traffickers in custody that were smuggling sex slaves across boarders. I didn't need to know details about the victims in question, but it's understood that they're often teenagers or children. So my initial reaction when reading this Twitter thread was "let's get these bastards…
> Unshared data shouldn't be subject to search. Once it's shared, I can make several cases for an automated scan, but a cloud backup of personal media should be kept private. Our control of our own privacy matters. Not for the slippery slope argument or for the false positive argument, but for its own sake. We shouldn't be assuming the worst of people without cause or warrant. I have a much simpler rule: Your device…
The vast majority of iPhone users won't consider it a betrayal that they can't send images of child abuse, any more than they consider it a betrayal that it doesn't come jailbroken.
The victims of child abuse depicted in these images may well have considered it a betrayal by Apple that they allowed their privacy to be so flagrantly violated on their devices up until now.