this post was submitted on 12 Nov 2024
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Privacy
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Switch phone service to VoIP, cancel cell service, all tracking capabilities is gone.
Iirc any cell phone is still capable of dialing 911(or equivalent) even without a sim. So id imagine carrier towers and gps could still find it. You'd basically have to keep the device in a ferriday bag. Which complicates actually using it.
One clarification: carrier towers can still find a phone; GPS is passive; your phone locates itself in relation to the GPS satellites.
Most phones are also broadcasting WiFi MAC IDs and Bluetooth MACs, plus hardware and capability strings over Bluetooth. And then any apps you’ve got loaded may also be calling home with your location unless you have that disabled and rotate your ad ID regularly.
[edit] also worth pointing out that even if you turn a smartphone “off” it still pings the local cell towers with its IMEI regularly. Surprised me the first time I witnessed that.