this post was submitted on 19 Jun 2024
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chapotraphouse

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Retailers are replacing price stickers in aisles with electronic shelf labels. The labels prices can change as often as every 10 seconds. Hot outside? They can raise the price of water & ice cream. (www.npr.org)
submitted 1 year ago by InevitableSwing@hexbear.net to c/chapotraphouse@hexbear.net
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[–] FloridaBoi@hexbear.net 15 points 1 year ago (1 children)

I don’t know if they still do this but I understood that at some point retailers were using Bluetooth and WiFi sniffers to track shoppers throughout stores so combined with variable pricing they can extract ever more from each customer

[–] kota@hexbear.net 10 points 1 year ago

I don't know the current status on this, but it worked by recording your phone's mac address (or bluetooth address) when your phone scans for wifi networks. So it could track you without you even needing to join the network. AFAIK this particular tactic was countered by Android and IOS randomizing the mac address it sends out (your networking stack can simply lie about it).