They have been marked like an animal do the test yourself

Tap News  /  Weaver

Android system, go to the play store and download the free Bluetooth scanner.  Once downloaded activate the phone’s GPS and Bluetooth.  Now open the Bluetooth scanner app and choose search.  You will verify that MAC addresses appear formed by groups of 12 digits between letters and numbers and separated by every colon click on them and you can see how far they appear away from you.

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