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Germany changes stance on Apple-Google contact tracing project

A graphic explaining how Apple and Google's system would function

Last updated

Germany has changed its stance on Apple and Google's work to create a contact tracing system for tracking and managing the spread of COVID-19, supporting a privacy-forward decentralized approach instead of using a centralized system.

On Friday, it was reported Germany and France were disagreeing with Apple and Google over security technicalities and the storage of data in the two tech giants' cross-platform system-level framework for contact tracing. Two days later, it seems that officials from one of the two countries have changed their mind to instead support similar efforts.

Germany was previously looking to create a centralized contact tracing system that relies on a central server, an approach that would allow health officials to be able to directly observe and potentially contact people suspected of carrying COVID-19. A central system approach is viewed as both a security and privacy risk by critics due to the handing over of potentially sensitive medical data to a single source, and paving the way to future state surveillance.

Apple and Google's system instead relies on a decentralized system, where contacts are stored only on user devices until they receive a positive COVID-19 diagnosis, with data only leaving the device upon that confirmation. The countries disagreed with the API's workings, and instead leaned towards the creation of a centralized monitoring system.

On Sunday, Reuters reports Germany has revised its plans to a "decentralized' approach. The country had backed the Pan-European Privacy-Preserving Proximity Tracing (PEPP-PT) initiative, which relied on a centralized system, but Chancellery Minister Helge Braun and Health Minister Jens Spahn advised of the change away from PEPP-PT to a more private method.

"We will back a decentralized architecture that will only store contacts on devices. That is good for trust," said Braun in an interview.

At this early stage, it is unclear what Germany is planning for its own system, such as whether it will be taking advantage of the Apple and Google API, or if it would work with the Decentralized Privacy-Preserving Proximity Tracing (DP-3T) effort backed by Switzerland, Austria, and Estonia.

So far, it has taken the Fraunhofer HHI research institute off the project, with officials advising the group on Saturday of its removal. "The project will be handed over and others will be able to make use of the results we have achieved so far to build a decentralized solution," said Fraunhofer HHI chief Thomas Wiegand in a memo to employees.

On the news, DP-3T stated it was "very happy to see that Germany is adopting a decentralized approach to contact tracing and we look forward to its next steps implementing such a technique in a privacy-preserving manner."



27 Comments

acheron2018 6 Years · 33 comments

Translation they have figured out how to use this to use this data against their citizens.  

The difference between corporations spying on you and governments doing it is that a corporation can’t (yet) send armed mercenaries to your door at 3:00 AM.

This app sounds perfectly reasonable.  Just like all the worst ideas in history did when first proposed. 

normm 16 Years · 653 comments

Germany was previously looking to create a centralized contact tracing system that relies on a central server, an approach that would allow health officials to be able to directly observe and potentially contact people suspected of carrying COVID-19. A central system approach is viewed as both a security and privacy risk by critics due to the handing over of potentially sensitive medical data to a single source, and paving the way to future state surveillance.

Just to be clear, in the Apple/Google system people who report having COVID-19 are verified in some manner by a health authority to actually have it; that information is known to the authority.  

What the authority does not know is who spent time near an infected individual;  that information is only on people's devices, and is not reported to any authority.

chaicka 14 Years · 257 comments

Singapore launched 'TraceTogether' app on 20th March, which tend open-sourced it to become the BlueTrace protocol released to the world to use and contribute to improve it. Australia has just recently released a COVID-19 tracing app which is developed based on BlueTrace protocol with its own modifications.

It is interesting to see many countries/nations adopting the similar model of contact tracing, even Apple-Google's API seems to be similar on the model where contact data stays on the users' devices until permitted by users' to upload/share with health authorities.

mattinoz 9 Years · 2490 comments

chaicka said:
Singapore launched 'TraceTogether' app on 20th March, which tend open-sourced it to become the BlueTrace protocol released to the world to use and contribute to improve it. Australia has just recently released a COVID-19 tracing app which is developed based on BlueTrace protocol with its own modifications.

It is interesting to see many countries/nations adopting the similar model of contact tracing, even Apple-Google's API seems to be similar on the model where contact data stays on the users' devices until permitted by users' to upload/share with health authorities.

Australian government runs a significant trust deficit at the moment and is not opening code for review till well after release. Which impact speed of uptake. They are now in Full PR mode trying to get people to use it but most of the commentary is "Do it for the country, even if it isn't that good and highly suspect" or "don't let prefect be the enemy of good". The one I really like when it's pointed out Apple Google effort should be on device (that in the 10's of miilions) by end of week the response is we can't afford to wait. 

I think Germany got it right especially in the context of a country that has land borders with other countries. Google Apple effort will work without revisiting the api once travel restrictions lift or if there is a trend reversal. Health departments will have what 14days of "exposure notifications" ready to go without having to overcome the lost momentum of people switching the app off. 

dewme 10 Years · 5775 comments

chaicka said:
Singapore launched 'TraceTogether' app on 20th March, which tend open-sourced it to become the BlueTrace protocol released to the world to use and contribute to improve it. Australia has just recently released a COVID-19 tracing app which is developed based on BlueTrace protocol with its own modifications.

It is interesting to see many countries/nations adopting the similar model of contact tracing, even Apple-Google's API seems to be similar on the model where contact data stays on the users' devices until permitted by users' to upload/share with health authorities.

The Singapore tracing app sounds intriguing but isn't it a centralized system when its deployed, which Apple/Google (and now Germany) are specifically advocating against using? I have no doubt that Singapore has the technical chops to develop and deploy this kind of app, but from having spent quite a bit of time in Singapore I feel that its residents are probably more trusting of their government leaders than are people in other parts of the world like the US, and for good reason I might add. I guess we'll find out soon whether these apps help solve the problem. I'd personally have no problem using Apple's app, but I respect other people's right to decide for themselves whether they feel the benefit outweighs the risk, or vice versa.