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Date: Wed, 16 Jul 2014 08:25:46 -0700
From: Eric Rand <eric.rand@...wnhatsecurity.com>
To: fulldisclosure@...lists.org, keiracran@....cc
Subject: Re: [FD] Jamming WiFi tracking beacons

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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