The press has recently reported TfL’s plan to track all wi-fi enabled devices through the Tube system, to measure passenger flows.
This technology could lead to important data gathering, which improves safety and staff deployment. But there’s also a risk it could be used nefariously, either for advertising purposes or even to track individuals’ movements.
If the technology is implemented, it needs to be within strict limits that ensures it can’t be used in a way that compromises privacy.