[altitudinous]

The scanning is to take place within iCloud Photos, which handles images / videos etc on an individual basis. It would be a pretty easy thing to do for Apple to calculate hashes on these. I'm not sure how iOS handles archives, but it doesn't matter - remember it isn't 100% or 0% with these things - say only 50% of those people store images in iCloud Photo, catching out only 50% of those folk is still a good result.

[trynumber9]

Yeah, I'm not sure. Just is a bit worrying to me. On my device iCloud Drive synchronizes anything in my downloads folder. If images contained within zips are treated as individual images, then I'm always just one wrong click from triggering their threshold.