<div dir="ltr"><div><div><div>" able to track the Congressman’s location....using cellphone tower triangulation".<br><br></div>Bah! There's no such thing.<br><br></div>There is, however, cellphone tower trilateration.<br><br><a href="https://en.wikipedia.org/wiki/Trilateration">https://en.wikipedia.org/wiki/Trilateration</a><br><br></div><div>If you want any security for comms content then use VoIP via a secure tunnel.<br><br></div><div>SS7 is what was put in place 40 years ago for telephone network  interconnections to work. Not at all surprised it has holes in it. That's one big problem with telecom - there's such a huge install base that it is almost impossible to change some of the basic stuff - like pulse dialling.<br><br></div><div><br></div><div><br><br><br><div><br><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 3:48 PM, Mark Atherton <span dir="ltr"><<a href="mailto:markaren1@xtra.co.nz" target="_blank">markaren1@xtra.co.nz</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">This looks quite interesting<br>
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<a href="http://9to5mac.com/2016/04/18/ss7-hack-iphone-congressman/" rel="noreferrer" target="_blank">http://9to5mac.com/2016/04/18/ss7-hack-iphone-congressman/</a><br>
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-mark<br>
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