Apple told Congress last July that all location data collected by the iPhone remains private. According to Apple lead counsel Bruce Sewell, Apple does collect anonymous location data from iPhones in an effort to improve its own database of cell tower and WiFi hotspot locations, but that it only does this with user consent. The discovery made by Allan and Warden clearly shows that this is happening constantly without explicit consent like Apple treats GPS, however, and it sure isn't anonymous when it's accessible directly from the user's device.
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