On Thu, May 09, 2013 at 10:19:36PM +0200, Juraj Bednar wrote:
> They use IMSI (sim number) to track you and you can not easily change that.

Exactly, so it's necessary to change both of them frequently.
But yes - it's not a panacea and mobile operators can still deanonymize you.

The other solution is to have own satelites in the space and use own satellite
phones :)
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[Pavol Luptak, Nethemba s.r.o.] [http://www.nethemba.com] [tel: +421905400542]