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Internet probe can track you down to within 690 metres
New Scientist ^ | 4/5/11 | Jacob Aron

Posted on 04/08/2011 10:44:33 AM PDT by LibWhacker

Online adverts could soon start stalking you. A new way of working out where you are by looking at your internet connection could pin down your current location to within a few hundred metres.

Similar techniques are already in use, but they are much less accurate. Every computer connected to the web has an internet protocol (IP) address, but there is no simple way to map this to a physical location. The current best system can be out by as much as 35 kilometres.

Now, Yong Wang, a computer scientist at the University of Electronic Science and Technology of China in Chengdu, and colleagues at Northwestern University in Evanston, Illinois, have used businesses and universities as landmarks to achieve much higher accuracy.

[...snip...]

The new method zooms in through three stages to locate a target computer. The first stage measures the time it takes to send a data packet to the target and converts it into a distance – a common geolocation technique that narrows the target's possible location to a radius of around 200 kilometres.

Wang and colleagues then send data packets to the known Google Maps landmark servers in this large area to find which routers they pass through. When a landmark machine and the target computer have shared a router, the researchers can compare how long a packet takes to reach each machine from the router; converted into an estimate of distance, this time difference narrows the search down further. "We shrink the size of the area where the target potentially is," explains Wang.

(Excerpt) Read more at newscientist.com ...


TOPICS: News/Current Events
KEYWORDS: internet; ipaddress; location; track
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The ChiComms want to know where you live.
1 posted on 04/08/2011 10:44:41 AM PDT by LibWhacker
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To: LibWhacker

Ministry of Love bookmark.


2 posted on 04/08/2011 10:48:57 AM PDT by IrishCatholic (No local Communist or Socialist Party Chapter? Join the Democrats, it's the same thing!)
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To: LibWhacker

I believe IE9 has an option to turn the location tracking off. I wil go check and let you know


3 posted on 04/08/2011 10:51:11 AM PDT by BornToBeAmerican (Kindness will conquer evil)
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To: IrishCatholic

A quick fix: modify the IP stack to introduce a small random delay. This would stop the “second phase” of pinpointing.

Or, something like Tor, although I’ve often wondered exactly who the “volunteers” who run it are. If you use Tor, you must be doing something “interesting”.


4 posted on 04/08/2011 10:55:32 AM PDT by The Antiyuppie ("When small men cast long shadows, then it is very late in the day.")
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To: BornToBeAmerican

IE9- Under the Privacy Tab, there is an option for “Never allow websites to request your physical location”


5 posted on 04/08/2011 10:56:39 AM PDT by Red in Blue PA (Let's apply the "reasonable man" standard to gun laws. How many would stand?)
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To: BornToBeAmerican

If I’m correct in interpreting this article, this is a form of internet sonar using pinging and data packets...except the results have to be filtered through google maps to make sense of them. If so, then I don’t know that changing any settings on IE locally will do anything to shield your location. In fact, I don’t know that anything will.


6 posted on 04/08/2011 10:57:03 AM PDT by Yet_Again
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To: BornToBeAmerican
Here is how you turn it off in IE9

Turn off
7 posted on 04/08/2011 10:57:36 AM PDT by BornToBeAmerican (Kindness will conquer evil)
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To: BornToBeAmerican
Here is how you turn it off in IE9

Turn off
8 posted on 04/08/2011 10:57:44 AM PDT by BornToBeAmerican (Kindness will conquer evil)
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To: BornToBeAmerican
Here is how you turn it off in IE9

Turn off
9 posted on 04/08/2011 10:57:57 AM PDT by BornToBeAmerican (Kindness will conquer evil)
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To: LibWhacker
The ChiComms want to know where you live.

I'm not so worried about the ChiComms as I am our own government.

I TRUST NONE OF THEM!

10 posted on 04/08/2011 10:58:23 AM PDT by unixfox (Abolish Slavery, Repeal The 16th Amendment!)
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To: LibWhacker

Hell, Verizon says they’ve got me to within 9 feet.


11 posted on 04/08/2011 10:58:23 AM PDT by ComputerGuy (HM2/USN M/3/3 Marines RVN 66-67)
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To: BornToBeAmerican

OOOOPS


12 posted on 04/08/2011 10:59:32 AM PDT by BornToBeAmerican (Kindness will conquer evil)
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To: Red in Blue PA

I didn’t know that anyone still used IE.


13 posted on 04/08/2011 11:00:21 AM PDT by RobRoy (The US today: Revelation 18:4)
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To: unixfox

The government already knows where I am to a heck of a lot closer than half a mile. They give me mail 6 days out of 7.


14 posted on 04/08/2011 11:01:23 AM PDT by discostu (Come on Punky, get Funky)
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To: IrishCatholic
Once they get that chip down, they know it will be real big seller.

you don't ip triangulation to know the time is short.

15 posted on 04/08/2011 11:01:50 AM PDT by the invisib1e hand (You is what you am.)
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To: ComputerGuy

>>Hell, Verizon says they’ve got me to within 9 feet.<<

This.

Fact is,if you drove across the country last week, and your cell phone was simply on, via a subpoena any organization could find out which cell tower you were near at any time during that trip. They could track your entire trip.


16 posted on 04/08/2011 11:03:30 AM PDT by RobRoy (The US today: Revelation 18:4)
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To: LibWhacker

Well yeah, but LL Cool Jay is the only one who knows how to make it work.

17 posted on 04/08/2011 11:08:47 AM PDT by Liberty Valance (Keep a simple manner for a happy life :o)
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To: Red in Blue PA
This only refers to when the browser explicitly gathers your physical location from a GPS (in the case of computers that have it) or an approximate location from a location service (usually based on wifi) and sends it to the website.

The technique discussed in the article should work independently of any browser settings, as it is based on the network transport layer.

18 posted on 04/08/2011 11:10:06 AM PDT by billakay
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To: Yet_Again

Most people in the military have a natural shield against this, since their traffic pops up on the larger Internet in only a limited number of places. When I was in Europe the IP locators thought I was on the East Coast.


19 posted on 04/08/2011 11:16:33 AM PDT by antiRepublicrat
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To: LibWhacker

Here is a business venture for anyone interested. 691 meter extension cords and computer cables.


20 posted on 04/08/2011 11:25:40 AM PDT by NavyCanDo
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