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Bluetooth tracker hidden in a postcard and mailed to a warship exposed its location — $5 gadget put a $585 million Dutch ship at risk for 24 hours (www.tomshardware.com)
submitted 6 months ago by to c/technology@beehaw.org
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[–] 47 points 6 months ago

In general:

  • The tracker sends out low-energy Bluetooth announcements including its unique id
  • a nearby iPhone hears those announcements
  • the iPhone uses its current location
  • the iPhone sends the tracker id and the location back to Apple via WiFi or cell
  • Apple notifies the owner of the tracker where the tracker was seen
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