[simonsaidit]

The alternative would be GPS which some governments are looking at now. It might give higher precision with a grid of location data to enhance it, but I would assume the protocol prevents this eg by some randomization of ids?

[conradev]

GPS is completely unidirectional from satellites to receivers and thus the satellites cannot be used to track the receivers

[simonsaidit]

What skuhn said. That is what the solution the Norwegian and Danish government is implementing is supposedly doing. Reporting the GPS data back to a central server. If you’re using iPhone.

https://www.simula.no/news/digital-contact-tracing-qa#How%20...?

[skuhn]

The receivers can be made to report their GPS data back for tracking purposes.