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I thought the idea of CSAM was more about matching an image to a list of fingerprints/perceptual hashes of known cp, locally on a device. Then that match is sen

I thought the idea of CSAM was more about matching an image to a list of fingerprints/perceptual hashes of known cp, locally on a device. Then that match is sent to Apple/Google/etc. and then they will notify the local authorities that you're a pedo. I also was under the impression that Apple already did that (at one point at least).

giantrobot 3y ago
> I also was under the impression that Apple already did that (at one point at least). Apple backed down on their on-device CSAM scanning. It was never implemented. However cloud image hosts, including iCloud, do scanning (PhotoDNA etc) of uploaded photos and have done so for years.