[soziawa]

> 6. Apple's CSAM detection then flags these, and they're manually reviewed

Is the process actually documented anywhere? Afaik they are just saying that they are verifying a match. This could of course just be a person looking at the hash itself.

[FabHK]

They look at the contents of the "safety voucher", which contains the neural hash and a "visual derivative" of the original image (but not the original image itself).

https://www.apple.com/child-safety/pdf/CSAM_Detection_Techni...

[hughrr]

If it’s a visual derivative, whatever that means, then how does the reviewer know it matches the source image? Sounds like there’s a lot of non determinism in there.