@roytang You might be interested in knowing: NZ's COVID Tracer app is a QR Code-based location tracker, with all data apparantly stored offline.

The government here is skeptical about the accuracy of the Bluetooth approach.

@alcinnz @roytang the D3 approach was never about tracking your location. it was about alerting people they came in contact with a :blobbee: explicitly without exposing any information about who.
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