A good read....... Shows in 1955 they had the technology to tap a phone EVEN WHEN ON THE HOOK!!

http://cryptome.org/2013/05/ultra-sonic-listening.pdf


Ah man!!

Re: Document from 1955 - UltraSonic telephone wire taps
 

For up to date f*ckery of this type, look up info about Pegasus spyware. It's an Israeli product used mainly by governments which can be installed on a mobile remotely without any action by the mobiles owner. they can bug your phone and there is nothing you can do about it...

Yes its scary.......