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    <div class="moz-cite-prefix">On 18/08/2015 10:34 pm, Jason Ross
      wrote:<br>
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                <div class="">The IMSI Sniffers are pretty much
                  redundant as they rely on GSM (2G)  operation, once
                  phone</div>
                <div class="">Is in 3G or 4G LTE Network it does not
                  work as It is encrypted and the IMSI appears to be 2G
                  only</div>
                <div class="">(The DIY) ones anyway. You can purchase
                  ones for $$$$$$ which work on 3G apparently.</div>
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        This is my understanding too.<br class="">
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    I guess some people see $30 as expensive ;-)<br>
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<a class="moz-txt-link-freetext" href="http://hackaday.com/2013/10/22/cracking-gsm-with-rtl-sdr-for-thirty-dollars/">http://hackaday.com/2013/10/22/cracking-gsm-with-rtl-sdr-for-thirty-dollars/</a><br>
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    -- <br>
    Steve.<br>
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