3 ms·
According to https://rentafounder.com/the-problem-with-perceptual-hashes/ https://rentafounder.com/the-problem-with-perceptual-hashes/ the false-positive rate
by still_grokking 5y ago
According to
https://rentafounder.com/the-problem-with-perceptual-hashes/ https://rentafounder.com/the-problem-with-perceptual-hashes/
the false-positive rate will be likely high. Given the billions of pictures going through this system there are going to be a lot of false accusations of child porn possession likely (and alone such an accusation can ruin lives).
HN discussion of that article from a few days ago:
https://news.ycombinator.com/item?id=28091750 https://news.ycombinator.com/item?id=28091750
- slownews45 5y agoThis is where the thresholding and manual review come in, but could be a bit scary for sure.
- cwkoss 5y agoEven with thresholding and manual review, the idea that most iphone users (who don't have any CP) are going to have a non-zero child porn score in apple's database is just super creepy. Just a minor policy change (lower threshold) away from calling millions of people pedophiles.
- simondotau 5y agoThe threshold is cryptographically enforced. See page 4 of Apple's technical summary.