MIT Technology Review: Hijacking Satellite Navigation, October 2008

“The Global Positioning System (GPS) lies at the heart of an increasing number of technologies, from vehicle navigation systems to the power grid. And yet, although the military version of GPS includes security features such as encryption, civilian signals are transmitted in the clear. Now, researchers at Cornell University and Virginia Tech have demonstrated a relatively simple way to fool ordinary GPS receivers into accepting bogus signals using a briefcase-size transmitter.”

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