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[liberationtech] How secure is Bluetooth?

Brian Conley brianc at smallworldnews.tv
Sun Jan 29 14:02:57 PST 2012


Hi all,

I've been thinking about a variety of applications for Bluetooth the last
year or so, finally getting down to business, but I'm increasingly
wondering about the security of transmissions via bluetooth devices, voice
in particular.

Does anyone know of documentation of *current* exploits that allow the
interception or "listening in" of calls over Bluetooth headsets?

It seems that it may be technically feasible to create a device that could
pick up the audio transmissions between a Bluetooth enabled phone and a
paired Bluetooth headset, but has this actually been documented? Given the
need to pair two devices in order to follow a radio frequency that hops
1600 times per second, allegedly randomly, it feels like the easiest way to
prevent this is keep the phone in your possession, and never pair with an
unknown Bluetooth device.

That said, has any one else seenf a documented manner to "receive" the
transmission between the two devices and follow it for the duration of a
phone call?

thanks!

brian

-- 



Brian Conley

Director, Small World News

http://smallworldnews.tv

m: 646.285.2046

Skype: brianjoelconley

public key:
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE827FACCB139C9F0



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