I work in the Wi-Fi sector. It's amazing how much data clients can and will collect and use for retail/advertising purposes. Chances are whenever you see a 'Free Wi-Fi' sign your presence and dwell time (at the very least) are being recorded.
High-end systems can track an individual and follow them on a map, noting things like which stores they visit at a shopping center. The sheer volume of data collected is fantastic (from the perspective of a data-nerd like myself) and scary at the same time.
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[ 3.6 ms ] story [ 9.3 ms ] threadHigh-end systems can track an individual and follow them on a map, noting things like which stores they visit at a shopping center. The sheer volume of data collected is fantastic (from the perspective of a data-nerd like myself) and scary at the same time.