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I haven't forgot about the guy that sent photos of his child to his doctor and was investigated for child pornography. With these systems, in my humble opinion, you are just one innocent photo at the beach away from your life turned upside down.

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And Google to this day refuse to admit the mistake. They've even gone as far as to insinuate that he still is a pedo despite a police investigation clearing him.

Do you have a reference on that?

That scenario would've been impossible with Apple's system.

It would’ve been less likely, not impossible. Perceptive hashing absolutely has issues with false positives.

No, it would've been impossible. One photo match wouldn't have been enough to trigger any sort of response within Apple's system.

And that's ignoring the fact that his photo wouldn't have matched anyway because it isn't in any CSAM database.

Apple’s proposal used perceptual hashing, which does have false positives, not cryptographic hashing, which does not.

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