@jmikesmith @Shilpa I remain suspicious; given my previous background and occupation. Plus given the history of Zero Day exploits and various other issues that have arisen in the past, it sounds as though it is a question of feasibility vs in-feasibility rather than a question of it being impossible.
Rather like someone stating in the past, that it was not possible to leak light from fibre optic cables - this of course has been proven incorrect.
It certainly points to a long term approach which is discussed in the following:
Definitely well worth reading, for background purposes and influence.