Comment by OJFord

You would only be flagged if the photos (' hashes) were added as part of some investigation right? So you only have to fear for your criminal record in the event that an actual criminal gets ahold of your indecent (in their hands!) photographs. In which eventuality you might be (relatively to not, but still leaked) glad they'd been discovered and arrested etc. assuming your good name could be cleared.

Just playing devil's advocate, my gut (and I think even considered) reaction is in alignment with surely just about the whole tech industry: it's over-reach (if they're not public images).