Home » BBC News - Technology » technology news » VIDEO: Wi-fi can identify people through walls VIDEO: Wi-fi can identify people through walls Unknown 4:37 PM BBC News - Technology technology news The tech which uses wi-fi signals to identify and track people through walls from BBC News - Technology http://ift.tt/1PkEZtL Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati