In recent discussions, one point came up consistently: We all know about cyber crime and we all learned about the espionage activities by NSA and other governmental organizations.
This quite naturally leads to a much further reaching question: We know that certain governments tend to compromise our supply chain. What if they do it not only for espionage but for the preparation of potential sabotage? Is this really that farfetched? I honestly do not think so and recent publication from Mr. Snowden seems to confirm this: Snowden docs reveal NSA digital warfare capabilities
The real question now is, how do you want to defend against a kill switch you will only see the moment it is activated? Which vendors are part of this?