I often wonder what the world would be like if apple had gone through with it (I am definitely not advocating for it, but wondering what the trade offs would be on the other side of the rollout).
Specifically, I wonder if we would’ve gotten an end to end encrypted iCloud as a result of client side csam scanning.
Right now there’s absolutely no path to end to end encrypted cloud for google and apple. Someone new could try to do it but there would have to be some way to do csam scanning or you’d be violating strict liability. Something like what apple did, effectively client side tagging and server side cryptographically probabilistic scanning, seems like the only way to accomplish this while staying in line with the government asks.
The problem, of course, is that apple is working against a corpus that is hidden.
I’m not sure what the right answer here. It’s an intellectually interesting problem with a lot of policy wrinkles.