'Blackphone' Puts Security First

I wonder high secure these type services and now phones really are.? Because if I were the government or company or whoever wants to know a companies secret or just people up to no good and I wanted to know what they were doing etc. The best way to get just that info rather then sorting it out from the mass of the millions of data flying around out there would be to create a "secret secure" phone and then listen in on it... and Viola! no mass customer data to sort just pure trouble or secret stuff.? If anyone actually knows anything that can chime in that'd be great...