Reply to post:

TfL to track Tube users in stations by their MAC addresses

John Brown (no body) Silver badge

"Until the Oyster ID or Underground ticket ID that was logged at the same time as the WiFi MAC address shows up at another exit,"

Unless they are going to add special, very short range WiFi APs at each turnstile, then is simply not going to happen other than those rare times when you are alone in the station. Or do you think VM provided multiple clever WAPs which can triangulate your position and "see" when you pass through the turnstiles rather than the cheapest kit available?

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