> Sorry, this is not even wrong. Probably a mistake to say things like this, when the public documentation contradicts you. > The visual derivative is not mat

> Sorry, this is not even wrong. Probably a mistake to say things like this, when the public documentation contradicts you. > The visual derivative is not matched against anything, and there is no "original" visual derivative to match against. Bullshit. Here is the relevant paragraph from Apple’s documentation: “as an additional safeguard, the visual derivatives themselves are matched to the known CSAM database by a second, independent perceptual hash. This independent hash is chosen to reject the unlikely possi- bility that the match threshold was exceeded due to non-CSAM images that were ad- versarially perturbed to cause false NeuralHash matches against the on-device en- crypted CSAM database. If the CSAM finding is confirmed by this independent hash, the visual derivatives are provided to Apple human reviewers for final confirmation.” https://www.apple.com/child-safety/pdf/Security_Threat_Model_Review_of_Apple_Child_Safety_Features.pdf https://www.apple.com/child-safety/pdf/Security_Threat_Model...