Eikonal Blog

2011.04.08

Geolocation

  • “SimpleGeo Makes Location Data Free, Complicates Smartphone Tracking Worries” by Kit Eaton (Fast Company; 2011.04.22) – http://www.fastcompany.com/1749262/simplegeo-makes-location-data-free-complicates-smartphone-tracking-worries
  • “Involuntary Geolocation To Within One Kilometer” 9SlashDot; 2011.04.08) – http://yro.slashdot.org/story/11/04/08/1245244/Involuntary-Geolocation-To-Within-One-Kilometer
      Schneier’s blog tips an article about research into geolocation that can track down a computer’s location from its IP address to within 690 meters on average without voluntary disclosure from the target. Quoting: “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 kilometers. 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. Finally, they repeat the landmark search at this more fine-grained level: comparing delay times once more, they establish which landmark server is closest to the target.”
  • “Internet probe can track you down to within 690 metres” by Jacob Aron(NewScientist; 2011.04.05) – http://www.newscientist.com/article/dn20336-internet-probe-can-track-you-down-to-within-690-metres.html
      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.
  • “Pinpointing a Computer to Within 690 Meters” by Bruce Schneier (2011.04.08) – http://www.schneier.com/blog/archives/2011/04/pinpointing_a_c.html

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1 Comment »

  1. […] The Snitch in Your Pocket (Law enforcement is tracking Americans’ cell phones in real time—without the benefit of a warrant), by Michael Isikoff (NEWSWEEK; Feb 19, 2010.02.19; from the magazine issue dated 2010.03.01): http://www.newsweek.com/id/233916 Related: Geolocation – https://eikonal.wordpress.com/2011/04/08/geolocation/ […]

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    Pingback by iPhone (and Androids, too) doing surveilance, on whose behalf? « Eikonal Blog — 2011.04.25 @ 10:57


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