mh- / corona-warn-companion-android

Android App Which Shows Details about CWA Exposures (Requires Root or CCTG or RaMBLE Apps)
GNU General Public License v3.0
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Double warnings with Austrian DK enabled? #145

Closed hman2 closed 2 years ago

hman2 commented 2 years ago

The new release of Companion now deals better with large data, thanks for that (currently: 1100 RPIs collected and 2,5 million diagnosis keys).

Therefore I re-enabled processing Austrian diagnosis keys (the previous version crashed with Austrian keys). With enabling Austrian keys, all of the three days where I currently have warnings (-85 dB to -100 dB signals, so no real concerns - despite the fact that one of the risks of transfer is being labelled "red", not using a number - reason unknown) the reported risks have doubled.

And on any of those days all those doubled risks allegedly occurred at exactly (!) the same time. That is hard to believe, so I guess that either Austrian DK are mirrored in German or vice versa, or Companion doubles these...

Thanks for inspecting.

mh- commented 2 years ago

Yes, the data is shared between countries, see e.g. https://ec.europa.eu/info/live-work-travel-eu/coronavirus-response/travel-during-coronavirus-pandemic/how-tracing-and-warning-apps-can-help-during-pandemic_en Thus it doesn't make sense to activate both "Germany + x" and "Austria", because the "+ x" includes Austria. (And Austria likely includes Germany as well?)

hman2 commented 2 years ago

Thanks. In that case, you should IMHO update the flags shown when standard Germany is activated...

mh- commented 2 years ago

https://github.com/mh-/corona-warn-companion-android/commit/0c9e68f623334f7d11261d18034ee9f04e9b198a