Todd Humphreys: How to fool a GPS

We all know that our actual location-based systems and services, such as Google Maps, Foursquare or Google Places very much depend on the Global Positioning System (GPS). Of course there are some supporting technologies, such as Assisted Global Positioning System (AGPS) which combines the GPS signal with additional data that comes over other networks (like GSM) to increase the accuracy and availability of GPS. Today alternative location based systems such as WLAN based locationing systems are not as widespread as GPS, so GPS remains the one and only globally available positioning system on which we all heavily rely on, even if we know  that GPS has serious security flaws.

In this interesting TED talk Todd Humphreys forecasts the near-future of geolocation when millimeter-accurate GPS “dots” will enable to find pin-point locations, index-search your physical possessions … or to track people without their knowledge. And the response to the sinister side of this technology may have unintended consequences of its own.

Todd Humphreys talks about the GPS technology and its future and how we can address some of its biggest security problems.