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>Matthew Green, a cryptographer at Johns Hopkins University. "Even if I tracked you walking around, I wouldn’t be able to recognize you were the same person from one hour to the next."

Thos sounds like a great way to track shoppers in, for example, a shopping mall.

If the BLE beacon is broadcasting at a predetermined rate this may also extend tracking past the rotation of keys right?

Most likely the device is already broadcasting a MAC address. But yes, with this it would work in flight mode.

The mac addresses are randomized to prevent tracking.

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