German police used a contact tracing app to track down witnesses in a local crime case. The scandal has data protection advocates up in arms, with politicians warning that abuse of the app could undermine public trust...
While trying to track down witnesses, police and prosecutors managed to successfully petition local health authorities to release data from the Luca app, which logs how long people stayed at an establishment.
Authorities then reached out to 21 potential witnesses based on the data they had unlawfully acquired from the app.
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