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> If Apple's reviewers see 30 CSAM matches and the visual derivatives look like porn Even worse, just get a "teen" porn screengrab, pass it through the collide
by d0100 5y ago
> If Apple's reviewers see 30 CSAM matches and the visual derivatives look like porn
Even worse, just get a "teen" porn screengrab, pass it through the collider and you have pretty much a smoking gun
- XorNot 5y agoThe "visual derivative" is not something any of us have been shown an example of either. Whatever it is, I suspect you only need to be vaguely in the same ballpark (I would wager humanoid shaped skin tones maybe). So I suspect it would be easier then that (particularly since this whole hashing scheme has been surrounded with a lot of clear garbage - "1 in a trillion" -> on demand collisions in a couple of weeks?
- ComputerGuru 5y agoI think visual derivative is just a beating-around-the-bush way of saying “thumbnail.”
- XorNot 5y agoThat's their words that they feel no need to elaborate on. Obviously they actually seem to just be doing the "technically the truth" thing - which shows that someone realized no one would like hearing what it actually is.
- ComputerGuru 5y agoYeah, it was very pointedly awkwardly worded. It’s intended for human reviewers to distinguish a false positive from a real positive. An eigen vector mapped image isn’t going to do that, a heavily Gaussian-blurred image isn’t going to do that - it needs to be something that a minimum wage person who’s only been trained a day or to can distinguish as “CSAM” or “not CSAM” and that means it’s a thumbnail of sorts.