4 ms·

They didn’t do hash checking on device. They uploaded an encrypted fingerprint of every photo and it was up to the sever to determine if that matched known csam

• theshrike79 4y ago
  You are wrong. They downloaded the CSAM hash database from iCloud (iCloud _HAD_ to be enabled). After that every photo was matched with the DB using their algorithm. If enough confirmed matches were found, "reduced quality images" would be sent to a human to double-check if the matches are correct and not false positives. Only after that the authorities would've been contacted. Compare this with Google's approach of "our AI just scans everything and if it sees something, it'll directly contact the police and shuts down your account with no way to recover it". (This actually happened). Which is worse?
  • matwood 4y ago
    > After that every photo was matched Only photos destined for iCloud were checked as part of the upload process.
  • ec109685 4y ago
    That’s not how apple’s scheme worked. All matching happened server side based on encrypted fingerprints sent along with the photos.