On: Apple plans to scan US iPhones for child abuse imagery

[sebzim4500]

What if an attacker has intentionally produced an image with the same hash as a well known blacklisted image?

Then they could send you the new image and fuck up your life.

[Causality1 → sebzim4500]

Hell, what if you were browsing a site like Facebook or Imgur or Reddit, saw an abuse image, reported it, but it still lives in your phone's browser cache?

[Reason077 → Causality1]

I would assume those sites are already using the same, or similar, algorithms/hashes to detect blacklisted images?

[voxic11 → Causality1]

This is exactly why I use firefox and switch it to in-memory caching only.