Tcf362fT131417 TECHNOLOGY PROFILES T969389~/wiki
T969389Surveillance Systems Exposed
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How they work. Who builds them. Where they watch. What you can do about it.
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T969389Showing: Location Tracking
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Wi-Fi Positioning System (WPS) Geolocation
T969389Apple, Google (device-location APIs)
T969389Wi-Fi Positioning Systems let phones estimate location from nearby
T969389Wi-Fi access points instead of GPS. Researchers Erik Rye and Dave
T969389Levin...
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