How about we start with some strict data privacy and handling laws? Make it so you straight up just can't collect & store personal information without proving that it's required and without it your business would not work (and no, data harvesting for advertising/marketing doesn't count).

Security is the problem, but it would be less of a problem if everyone wasn't trying to hoard as much data as possible from their customers for seemingly no reason at all. Take a scroll through the Play Store/App Store and look how many really simple apps request permissions for camera, microphone, location, local network, etc. for something like a metronome app that needs none of that.