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Discussion on: What is Apple thinking?

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leob profile image
leob • Edited

It's not quite like that - they're not actively "scanning" and then using AI or whatever, instead they simply calculate a file hash (checksum) and comparing that to a database with hashes of known (confirmed) CP imagery ... that's probably about the most robust and least questionable way of implementing this kind of thing.

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renanlazarotto profile image
Renan "Firehawk" Lazarotto

Hey, thanks for the answer! So this means they won't get the images, just the hashes, right? Any place I can read more about how it'll work? I'm really interested on understanding more.

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leob profile image
leob

Yup it's here in their FAQ, it's very clearly explained here how it works:

apple.com/child-safety/pdf/Expande...

What they do is download a little database (list) of those hashes to your iPhone (this list gets updated regularly), then when uploading a file to iCloud they simply compute the hash/checksum and compare it to the list.