Study: Fitness trackers are leaking a lot of your data
Some of the more popular sports wearables don't just let you track your fitness, they let other people track you. That's what Canadian researchers found when they studied fitness-tracking devices from eight manufacturers, along with their companion mobile apps. All the devices studied except for the Apple Watch transmitted a persistent, unique Bluetooth identifier, allowing them to be tracked by the beacons increasingly being used by retail stores and shopping malls to recognize and profile their customers.
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