Story

I learned about doing this back in the Navy in the late 1970s. This is exactly why there are protocols over what electronics can be used when on a warship. Back in the 1980s it was possible to pick up random radiation to discover the position of a ship fairly far away, and if one had the right equipment even in those days keystrokes could be decoded based on the radiation from the keyboards and terminals.

So I have to say that those who do not read history are doomed to learn the lesson again.

bsdguy