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Comment by sp332 | Hacker News Reader

Revenge porn isn't all about nudity. And this does cover Messenger (and Instagram). The point isn't to get an image taken down after the fact, but to proactively block it from being posted or sent in the first place.

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I thought facebook would run posted images through their AI nudity filter before allowing them to be posted? It's good that this covers messenger as I've read stories in the past of people being blackmailed over it, but surely there must be a better way than asking people to upload their private images to facebook. Plus, what's the case with younger facebook members? Do they upload the images and are therefore sharing child pornography with facebook, or not upload and don't get to be protected from revenge porn postings, when they're one of the most at-risk demographics?

I didn't know Facebook had an AI nudity filter, I thought it was all based on reported images. They softened their stance on some things, especially after censoring a Pulizter-prize winning photo from Vietnam, and eventually changed their policy on breastfeeding too https://www.facebook.com/help/340974655932193/

I'm sure they don't have a legal exception for underage photos, but those laws do vary from state to state.

It's probably infeasible to run that type of filter in-path during uploads without adding too much latency to posting, wheras the hashing approach is much less expensive. AI filters likely take down images after they've already been posted

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