Mark Rober urges viewers to be cautious of an emerging threat to their privacy. Thieves are using a well-hidden device that is able to steal the pin code of the person in front of them at the grocery checkout.
How do they do it? A camera on his phone that is able to detect and record thermal images. A 2011 study published by the University of California, San Diego explores how effective these types of attacks are, and the results proved troubling. Luckily, Rober shares his advice on how to prevent these types of attacks below.
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