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Apple: iPhone Earlier this year, researchers found that the iPhone logged location data of cell towers and wifi hotspots. |
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Google: Android Google’s Android caches similar location data as the iPhone, though not as much. |
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Facebook: Places The location-based product by default allows others to locate you, and cannot be turned off. |
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AT&T: FamilyMap The app caches a family member’s whereabouts, allowing an abusive husband to track his wife. |
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FourSquare The location-based social networking website leaked user data on a massive scale. |
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TomTom The manufacturer of automotive navigation systems sold data of its customers’ locations. |