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This is a feature the Netherlands police actually uses to track phone locations. It’s possible to send a “silent sms” to a handset and by doing so you can disc
by guube 3y ago
This is a feature the Netherlands police actually uses to track phone locations.
It’s possible to send a “silent sms” to a handset and by doing so you can discover where the receiving handset is located. This is undetectable by the user of the handset unless they use a rooted device and monitor all incoming sms payloads.
- hunter2_ 3y agoI'm kind of surprised that rooting the device allows the user of the device to become aware. It seems like the sort of thing that the baseband layer would handle without passing anything at all to the main OS. At least for the messages designed for stealth. Obviously the messages meant to influence the UI (like voicemail status) need to make their way to the OS.
- wongarsu 3y agoI assume from the point of view of the baseband processor these are all messages meant to influence the UI, and the silent messages sent by police are an "abuse" of the feature