We need to educate people on how to secure the data on their phones so that even the manufacturer cannot reach it. And if that is not possible for a particular device, that should be clearly understood so people can make an informed choice about what smartphone they use.
Can't just tell people 'do not put nudes on your phone' because while it's good advice, it misses the point.
And, of course, whoever does something like this should be strung up by their toenails in the public square.