May 2006
Beginner
288 pages
2h 32m
English
Content preview from How Personal & Internet Security Work
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Chapter 25. How Location Tracking Works
You can run, but you can’t hide.
That might well be the motto of the modern age. Because these days it’s easy to find out exactly where someone is at any given moment. If you use a cell phone, for example, there are ways for the cell phone company to know your general location. And global positioning systems (GPSs) can pinpoint your precise location with uncanny accuracy.
The GPS system is an especially revolutionary development. Originally developed by the military, GPS systems are now in widespread use. You can find them in cars for helping with directions and knowing exactly where you are and in handheld ...