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At least on iOS, it doesn't access the GPS directly. It asks the OS for updates to the device's location with a certain degree of precision. It's up to the OS t
by Nextgrid 1y ago
At least on iOS, it doesn't access the GPS directly. It asks the OS for updates to the device's location with a certain degree of precision. It's up to the OS to blend various sensor data (GPS, cellular, Wi-Fi, Bluetooth beacons - the latter is used underground to get a good position fix without a line of sight to the sky) and send that to the app. If it was using GPS continuously it would drain your battery very quickly. So if the device can get a good idea of its location via Wi-Fi/Bluetooth, it will not even bother turning on the GPS.
- seabass-labrax 1y agoI see a vulnerability in that - spoofing location data is not hard. I really hope this doesn't lead down the path of transport operators introducing DRM-like rootkits, but unfortunately the concept of relying on data from devices owned by the user is always going to be at odds with preventing dishonest use. I'd much rather use a smartcard which, whilst tamper-proof and not modifiable by me, is separate from my own devices and personal data.