Thursday, 10 of January of 2008
Bluetoothtracking.org, the great wireless brother
The great majority of the movable telephones that are sold nowadays incorporates connectivity bluetooth. And a great part of the users takes it activated of continuous taking advantage of the capacity to detect near telephones, to use the free hands of the car (something that does not need that bluetooth is visible after to have registered the apparatus for the first time), or by simple ignorance. It is not necessary more to seat in a cafeteria and to activate the detection of near apparatuses: they will appear tens and tens of them.

Detecting gadgets with bluetooth near
And she is that the functionality of the free hands and other accessories would not be decreased to have blueetooth activated but hidden, nevertheless much people it ignores it and it continues being a traveling radio transmitter (and exposed to receive a virus by bluetooth).

Safe configuration of bluetooth, activated but
invisible
“ruido” would be interesting to take advantage of all this; bluetooth to analyze the people who happen around to ours, or of our house truth? Ésto is what geek of Apeldoorn thought, in Holland, when seeing what could do with the adapter bluetooth USB that finished installing in its PC:
In September of 2007 I connected an adapter bluetooth USB with reach of 100 meters, and began to appear in my PC the names of near teléfonos/aparatos with bluetooth. It was then when the idea was happened to me to mount a network of escáneres by my city to analyze people.
I placed adapters bluetooth in five sites with access to Internet: the houses of my friends and relatives. In order to maintain the budget under I use Capios (terminals Windows EC). Reprogramé the Disk module on Chip so that Linux ran (in concrete DSL) and my scripts. The gathered data are sent to a central data base (MySQL). The final result is what it is seen in these pages.
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Scheme of the assembly
Thus it is, in Bluetoothtracking.org we can see the results of the carried out investigation. The number of equipment is impressive: it is enough to see the list of the last detected ones in the 24 hours nondetected previously. The results are very interesting, and open to everything a field of techniques of study of the population:
- The traffic of people near buildings of offices, with a tip to 8, and another one to 12 Fridays (much people have afternoon of free Friday):
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Equipment detected during the week near the offices
- The same but in downtown, seeing itself the schedule in which department store opens:
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Equipment detected during the week in the center
- The distribution of models of GPS TomTom with bluetooth activated, detected in the cars that circulated near the sensors:
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Models of detected navigator GPS TomTom
- The distribution of the Nokia models, a perfect study of the popularity of each one of them:
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Models of detected movable terminals Nokia
- Study of equipment detected in two locations located to 16 km of distance to each other, which a person who traveled between, whenappearing in both detected (it is possible to be known until how long took).
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Trip interpreted from two consecutive sightings
As we see, the result stops being a curiosity, to have remarkable implications. Let us imagine the interest which this technique can have for the companies to the power to make studies of commercialization and uses of its totally real products (this is not surveys, is data of all the population that happens through the sensors), or for the police, to the power to know when a telephone by the way passed site, that route followed, etc.
Nevertheless, we do not have to be alarmed in excess, since although direction MAC of the telephone identifies univocally to the apparatus (like it happens with the card of network of our PC), is not possible univocally to be related the telephone to the person. Somebody can be using rendered it, or it to have robbed. In addition does not exist a data base that surely relates directions MAC to the proprietor of the equipment (? inasmuch as time).
In the page of the project we can see that the author has taken the measures necessary to maintain the privacy of the detected people:
- Only are the 6 first digits of the MAC (the corresponding ones to the manufacturer, the other 6 digits yes that they univocally identify to the apparatus).
- The names of equipment that are combination of full name, directions of mail, telephone numbers have been eliminated, etc.
- The detailed data more of the equipment have been eliminated.
- The option has been eliminated search
Of course, which this person has eliminated this information of her page, it does not mean that other that apply this same technique they are going to do it. It is more, crossing the data of this data base with which the operators have of their terminals, and the users of these terminals, the attack to our privacy that can suppose is really worrisome. So like conclusion, you do not put the power so easy to watch all your movements, and deactivate the visibility of bluetooth of your apparatuses, they are going to continue working equal but they will not be announcing that way your presence.




















