Reply to post:

Tufts boffins track device location without GPS or towers


Ah, but to use GPS requires GPS receivers which cost ££$$ (or whatever your currency of choice is). Talking to the thing* next to you is much cheaper than hardware.

*Internet of Thing device: Know why they called it that ? 'cos they don't know what these things are or what their actual purpose is. (besides spying, eavesdropping, reporting location).

Press the 'esc' key and give me the ... sdcard?

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