They don't even have to hack anything.This is all they have to do to destroy someone now: just hack any of your devices, put CP on it, and all the public hates you.
I wonder, if you are accused of dirty images, do they ever even show you the images?
Many times the accusation alone is enough to destroy someone. If one were charged with such a crime, with zero evidence, and no trial ever occurred, and they just let the judge dismiss the case when no one showed up, it would still be devastating, and people would still think you were a sicko.
But they could go to trial, where the feds have something like a 98% success rate at beating you in their own courts, and your lawyer will probably push for a plea agreement, not believing you are innocent because EVERYONE even prisoners hate molesters. So actual dirty pictures of kids need not even exist (I have always thought such a thing is vastly overblown because I've accidentally seen all sorts of gross stuff throughout my college years, including poop and bestiality but never anything like this).
I mean I hate to be the one saying "Show us the CP" but I honestly don't believe it until it's proven (as you point out it is not difficult to plant, and if anyone has such pictures in our society it's the US Federal Government lol)