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<p>On 06/13/2017 06:57 AM, o1bigtenor wrote:<br>
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<blockquote type="cite"
cite="mid:CAPpdf5_jh7_-qm41Qbv677Sk+1KET6ddpnOi87xteEwQSPbCVQ@mail.gmail.com">
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Jun 12, 2017 at 9:44 PM,
Alvin Starr via talk <span dir="ltr"><<a
href="mailto:talk@gtalug.org" target="_blank"
moz-do-not-send="true">talk@gtalug.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
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<tt>You can never be paranoid enough.</tt><tt><br>
<br>
</tt><tt>What your looking for is a tempest enclosure. </tt><tt><br>
</tt><tt>Its basically a Faraday cage but tested to NATO
et al standards.(<a
class="m_3972536429735653100moz-txt-link-freetext"
href="https://en.wikipedia.org/wiki/Tempest_%28codename%29%29"
target="_blank" moz-do-not-send="true">https://en.<wbr>wikipedia.org/wiki/Tempest_(<wbr>codename))</a>.</tt><tt><br>
</tt><tt>A bunch of years ago I was dealing with CSE and
got to learn that you can read a CRT screen from a
good distance away (I vaguely remember it was on the
order of a KM or so). There is apparently at least 1
tempest building in Ottawa that got screwed up because
someone cut some holes for plumbing.<br>
So your not the first person worried about others
capturing your radiated signal.<br>
<br>
Not that long ago I read an ACM article talking about
being able to read an LCD screen in the next room from
RF and then there was another ACM article about being
able to read a screen from the reflection off a
persons eyeballs.<br>
<br>
So to keep completely safe.<br>
1) remove the battery<br>
2) wrap it in aluminum foil<br>
3) wrap it in copper foil<br>
4) solder the edges.</tt></div>
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<div>Greetings</div>
<div><br>
</div>
<div>Why - - - I do believe that that would work - - -
except then the device isn't usable - - - shucks!!!</div>
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<div>Dee </div>
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</blockquote>
<br>
You can have either security or usability but almost never both.<br>
<br>
As for IoT. Its is most often bundled with "cloud" control and that
is where I have a problem.<br>
The idea of networks of devices is great.<br>
Being able to control and monitor "things" over an internal wireless
network is nice.<br>
Of course that is predicated on the wireless protocol being secure
and very hard to hack.<br>
<br>
The problem quickly becomes all those devices like the Nest
thermostat where your device is controlled and connected to some
foreign corporation.<br>
They chose how you interact and if they decide to get out of the
business(or go out of business) then your hardware is now just so
much wall decoration.<br>
Then there is the fact that they can extract information about you
by the way you control your devices and that is just a little bit
creepy.<br>
<br>
I like devices that I can control from inside the perimiter of my
own somewhat secured network.<br>
That way the control is what I chose and the information I share is
my own security/privacy trade-off.<br>
<br>
<br>
<br>
<br>
<br>
<br>
<pre class="moz-signature" cols="72">--
Alvin Starr || voice: (905)513-7688
Netvel Inc. || Cell: (416)806-0133
<a class="moz-txt-link-abbreviated" href="mailto:alvin@netvel.net">alvin@netvel.net</a> ||
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