All the details on how to do a good and efficient security design for computing is already discovered and covered by a patent but no one states how this works and although we have CHERI, they seem to miss the point. 

This or similar is the absolute best approach that, with a sane political will, will make sure that we can both catch thieves and have privacy. 

https://www.linkedin.com/pulse/safe-smart-computing-stefan-israelsson-xl4wf/

http://isenwriter.com/safe-computing.html