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Date: Thu, 17 Jul 2014 22:56:20 -0400
From: Rikairchy <blakcshadow@...il.com>
To: Eric Rand <eric.rand@...wnhatsecurity.com>, fulldisclosure@...lists.org
Subject: Re: [FD] Jamming WiFi tracking beacons

I'm thinking of picking up a few Raspberry Pis, I was wondering if they
could be used as a way to track devices that search for wifi (unless this
is passive only), and recognise "friendly" devices while notifying an
administrator of foreign devices detected. Could this have any real world
application?
On Jul 17, 2014 7:37 PM, "Eric Rand" <eric.rand@...wnhatsecurity.com> wrote:

> There's a project on github for just that kind of thing:
>
> https://github.com/DanMcInerney/wifijammer
>
> Regardless of the hardware you choose to use, however, keep in mind that
> you're going to be using a much higher fraction of the radio amplifier
> in the wifi adapter's time than normal use, so there will be
> proportionally greater power consumption.
>
> (Radio theory isn't really infosec, but is a design consideration for
> something like this; I can talk about it out-of-band if you need to know)
>
> On 07/16/2014 02:26 AM, Keira Cran wrote:
> > Hey,
> >
> > It's great that companies like Apple recognising the threat of tracking
> > people via their devices wifi cards' MAC addresses, by randomising them.
> >
> > Naturally, I wondered i it was possible to jam the measurement beacon by
> > spoofing tons of wifi clients.  At one point in London, there was an
> > advertising firm with tracking bins [1] and I have a nice clip of a
> > technician looking puzzled at one beacon trying to figure out what's
> > wrong. (Unfortunately, it's bit too close to home (literally) to share.)
> > In the US I believe some ad "analytics" firms like SenseNetworks do
> > something similar. [2]
> >
> > Consider this a call to arms then, to put those unused raspberry pies
> > you have lying around to good use.
> >
> > best,
> > keira
> >
> > [1]
> >
> http://www.theguardian.com/world/2013/aug/12/city-london-corporation-spy-bins
> > [2] http://sensenetworks.com/
> >
> >
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>
>
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