this post was submitted on 28 Aug 2023
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Not true.
A simple CAPTCHA got rid of a huge set of idiotic script-kiddies. CSAM being what it is, could (and should) result in an immediate IP ban. So if you're "dumb" enough to try to upload a well-known CSAM hash, then you absolutely deserve the harshest immediate ban automatically.
You're pretty much like the story of the economist who refuses to believe that $20 exists on a sidewalk. "Oh, but if that $20 really existed on the sidewalk there, then it would have been arbitraged away already". Well guess what? Human nature ain't economic theory. Human nature ain't cybersecurity.
Idiots will do dumb, easy attacks because they're dumb and easy. We need to defend against the dumb-and-easy attacks, before spending more time working on the harder, rarer attacks.
You don't get their ip when they post from other instances. I'm surprised this hasn't resulted in defed.
Well, my home instance has defederated from lemmy.world due to this, that's why I had to create a local account here.
I mean defedding the instances the CSAM is coming from but also yes.
I'm sorry but you don't want to use permanent IP bans. Most residential circuits are DHCP meaning banning via IP only has a short term positive effect.
That said automatic scanning of known hashes, and automatically reporting to relevant authorities with relevant details should be doable (provided there is a database somewhere - I honestly have never looked).