Sniff keystroke from thin air or power lines

[Trooper110]

Researchers find ways to sniff keystrokes from thin air | ITworld

Think the NSA has any outside outlets? lol

[Zantheus]

Yea that is pretty neat though when you think of the science aspect of it

[Duke{CLR}]

That's cool. I also heard that a trained person can tell what is being typed by listening to the keystrokes.