At the current global rate of successful cyberattacks on government installations one has to wonder if there is such thing as a secure system. It appears everything can be tracked or has a backdoor. Who needs a skeleton key if you have access or can just brute force your way into any system?

- and yes, skeleton keys (allegedly) don't exist yet. But here the thing, any nation who actually develops one would be insanely stupid to tell anyone. Especially their enemies.