It really depends on what you mean. It's not too hard to get a receiver that can pick up GSM signals. Converting it to digital is a bit harder. Frequency hopping.... getting expensive. Encryption -- depends on the version of GSM I think. But you're talking about a nation state and as people said, almost any nation state could replace your phone with custom hardware. Similarly they can just query the telephone company.
<br><br>I think the more fundamental question is can they possibly process a reasonable amount of voice traffic for a large number of users? Data mining itself is a monumental challenge. Converting (cellular) audio to something that can be stored and analyzed in a reasonable manner is a huge endevour.
<br><br>My final thought is that if you pissed someone off and they're targeting you, then you're screwed. If you think the government is processing everyone's cell calls -- i doubt they're doing it effectively.
<br><br><div><span class="gmail_quote">On 10/1/07, <b class="gmail_sendername">Felix Dzerzhinsky</b> <<a href="mailto:felixdzerzhinsky2@hotmail.com">felixdzerzhinsky2@hotmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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Can anybody point me to a relaible source of information regarding the capability of the security forces in Cambodia to intercept GSM phones?<br>
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I am talking about military SIGINT or police wiretapping here.<br>
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Legally the police have the right to do so but do they have the technical capability?<br>
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