• Em Adespoton@lemmy.ca
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    9 days ago

    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.