Reply to post: Nothing new

TfL to track Tube users in stations by their MAC addresses

toby mills

Nothing new

This isn't anything new or unique. Lots of places do it, mainly shopping centres etc. to track footfall and use it to calc rates, congestion and more. Cisco, HP, Huawei all offer this out the box.

Without logging into a Wi-Fi you can be tracked down to 9 metres. When logged in that drops to around 1 metre.

And no, most people don't turn their Wi-Fi off.

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