Finland launches its official COVID-19 tracking app
Following many other countries' suit, Finland, launched today its official COVID-19 tracking application for iOS and Android platforms. App is called Koronavilkku (literally, coronavirus blink).
App, much like its many siblings in other countries, uses Apple's and Google's joint API that was created to track and trace novel coronavirus infections and alert about them.
Privacy?
App requires no registration or login details whatsoever and its privacy details were audited (link in Finnish) by Finland's National Cyber Security Centre, which found no privacy problems with the app.
App is anonymous and it wont pass any identifiable details of the user to the authorities, as its purpose is simply to alert the user if there user has been in close contact with a person who has COVID-19 infection.
How does it technically work?
To put it simply: through Bluetooth.
App doesn't use GPS or any other location data, but relies on close proximity of other Bluetooth devices.
Basically the app generates a random string for each device and distributes that data through Bluetooth data to other devices that have the same app installed - and vice versa. This random value is recreated every few hours to ensure privacy. Read more...