As far as I can see there is no inherent deterrent that came along with Analogue technology; like the need for expensive equipment to listen in or hack.
Now the average hoboe can buy a cheap computer and learn or buy some software to hack.
What I find disturbing is that we are being compelled to come on board to this vulnerable technology with both the Public and Private sector determined to corral us onto it!
These forced subtle duress is due to the investment by both sectors into this technology without accepting weakness in it vulnerability