[unreal37]

Actually, this shows that intercepting the password entered from either audio or electronic signals from the other side of a wall is possible. It's just a matter of perfecting the technology to intercept it.

Like, if I can read Chinese as long as the strokes are clearly made, you can say that I can read Chinese. Now it's just a matter of increasing error correction to remove the qualifier.

It's only a matter of budget to be able to read the keyboard characters without modifying the driver.