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Humans can be tracked with unique 'fingerprint' based on how their bodies block Wi-Fi signals
(www.theregister.com)
This is a most excellent place for technology news and articles.
Except that the tinfoil hats don't work
Maybe wearing a different tinfoil hat every day would mess up a person's "fingerprint"
you might be onto something.
take a mylar square and place it somewhere random on your body every day.
Yep it has to be random to mess with the algorithm. You could have fun and cut different shapes each day.