I'm writing a story about a company similar to Google, i.e. which wants to know everything about everyone and which wants to trace everything what is traceable out there. But which, in the same time, want to secure their key, top-management workers (CEO, CFO, CTO etc.) from being traceable by all, including own company.
The key requirement: next to being most secured and untraceable, this phone must also be as flexible and operational and possible and thus usage of public infrastructure and solutions is a must. Complete separation from public industry (i.e. own transmission network) is out of discussion due to:
- inability or high cost of hiding such network from others and
- lack of flexibility -- inability to cover entire world (as public GSM network currently covers it).
This requirement could span on one of two areas:
- Make such phone completely untraceable to other 3rd parties.
- Make it traceable by others but use some special solution to transmit sensitive data and only hide this data from others.
So far I have come with only one idea. Very limited one. And only for second area of above.
Since this company is worldwide and very influential in IT business, being part of steering committees in many projects, technology solutions, protocols etc., it could possibly "include" (technical details not important at this level) some garbage in one of GSM or Internet transmission protocols, convincing others that this garbage is necessary, but easy to be filtered out. Regular phones would actually filter out this garbage while "these" phones would use it encode and transmit sensitive data hidden in this "noise". Something a bit similar to using steganography for hiding sensitive data in images etc.
Are there any other options that I do have do consider? Can I achieve area one (i.e. making phone completely not traceable while stil using public network) using today's or very-near-future technology?