The concern is less false positives, and more if the Chinese government tells Apple "find everyone who has this picture on their phone in Hong Kong"

The PhotoDNA platform doesn’t offer the participating organization raw photos, just hashes. The AI part is stitching photos with matching edges together, incase someone cropped them into different parts.

Again, Apple nor any company, have access to the source data, just hashes.

My point was that it can’t be “simple” hashes, as that is easy to defeat. I never said anything about Apple having the source images.