DISCLAIMER: These notes are from the defunct k8 project which precedes SquirrelJME. The notes for SquirrelJME start on 2016/02/26! The k8 project was effectively a Java SE 8 operating system and as such all of the notes are in the context of that scope. That project is no longer my goal as SquirrelJME is the spiritual successor to it.
You know, it would be possible for hardware specific exploits that can take out systems from user space. Certain electronic bits could be used to generate magnetic fields in circuits to cause changes in logic. That would be very hardware specific, very much even machine dependent.