The kind of security people seek is ultimately impossible to attain.
We are building a "multi-layered" tower of babel in pursuit of a mirage.
One day your car will refuse to start, and you will discover that, for security
reasons, the password you have forgotten cannot be overridden
for love or money. Three quarters of the human race will be
effectively shut out of all high tech devices because
the humans cannot be redesigned to
make security possible.
Keep your secrets inside your head, not on networked computers.