By Giacomo Martiradonna Monday 18 May 2020
The web previewed the first images of Immuni, the Italian contact tracking app from COVID-19. Here's what it will look like on iPhone X.
The official documentation of immune, the app that will let you know if you came into contact with a Coronavirus patient. We are thus able to show you how will work on your iPhone.
Contact Tracing: the anti-Coronavirus technology of Apple and Google
Apple and Google are working on a Contact Tracing technology that will allow us to study the spread of contagions from Coronavirus. But what are the privacy risks?
The application will work through the decentralized contact tracking technology developed by Apple and Google, but waiting for the experts to view the source code, every judgment remains on the goodness of the software remains frozen. For now, let's limit ourselves to a few aesthetic and functional consideration.
The idea that the user can activate tracking, which remains active even if the app closed, and that you will be notified if you have come into close contact with an infected person in the previous 14 days; when the warning appears, the presence of symptoms compatible with COVID-19 can be reported, and in that case the system will provide the guidelines to follow. Here's how it works in more detail:
Immuni associates each phone with a random code The code generated randomly and does not contain personal information on your device, much less about you. In addition, it changes several times every hour, to better protect your privacy.
The phones you meet exchange their random codes When you come into contact with another Immuni user, the devices exchange their codes via Bluetooth Low Energy. The app thus manages to keep track of the contact, but does not know your identity or know where you met.
Those who test positive choose whether to share their random codes Users who have tested positive for the virus can upload the random codes that their devices have transmitted in the previous days to a server, in order to make them available to other users.
Each phone checks if you have previously encountered one or more of the shared codes Immuni periodically checks the codes on the server and compares them with those saved on your device. Doing so determines whether you have been exposed to potential contagion.
In the event of a positive response, the user is warned If you've been in contact with a positive user, Immuni warns you and tells you what to do. He manages to do all this without ever knowing where you go and who you meet. Your privacy safe.
When you get a diagnosis of COVID-19, you can essentially decide if proceed to report it to the app, which in turn will anonymously and securely inform all people who have come into close contact with us in the past two weeks. In order to complete this part, however, you need to use a security code that prevents forgery.
The graphics warm and reassuringbut how it works and the implications for the privacy of the population that concern experts. In the intentions of the government and Civil Protection, the massive use of this app should help keep it going the epidemic under control, and selectively prevent further infections. But people are not numbers, and very difficult to understand at this stage what success will a similar initiative.
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