The 213-foot White Rose is the US$80M megayacht whose GPS navigational system was spoofed by about $2,000-$3,000 worth of equipment (Photo: U of Texas at Austin)
Jahshan Bhatti operates the spoofing hardware aboard the White Rose (Photo: UTexas at Austin)
The distance from three satellites determines the location of a point on Earth's surface (Image: B. Dodson)
The electronic chart shows the ship's GPS-based location and the planned route over a navigational chart, on which the ship's current location and direction of travel is indicated by the black target and arrow, respectively (Image: UTexas at Austin)
The RADAR system measures the distance and bearing to nearby targets and plots their course, along with the ship's (spoofed) course derived from GPS measurements (Photo: UTexas at Austin)
On the bridge of the White Rose appear, from left to right, crewmember Sammy, graduate student Ken Pesyna, Professor Todd Humphreys, Captain Andrew Schofield, and crewmember Ryan (Photo: UTexas at Austin)
Civilization depends on the Global Positioning System for everything from precision armaments to finding the location of the nearest pizza shop. Indeed, access to GPS's strengths and capabilities has grown so fast that little concern about its weaknesses has penetrated the public consciousness. Fortunately, assistant professor Todd Humphreys' team at the University of Texas at Austin continues to arrange splashy demonstrations of GPS spoofing. His latest is to covertly alter the course of an oceangoing yacht.
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