A laser can be reflected off the ‘string’ picking up the vibrations and decoded back into ‘voice’.
So...basically ANY communication whatsoever, no matter how secure one thinks it is, can be picked up.
Even if you are standing face to face with your spouse in your living room. Even your ‘movements’ inside your house can be detected.
Did you see the latest...where you can wave from across the room to disengage your tv etc...but at the same rate they can tell by your movements where you are in your home or business?
Did you see the latest...where you can wave from across the room to disengage your tv etc...but at the same rate they can tell by your movements where you are in your home or business?