Series on COVID-19 Contact Tracing Apps Part 1: Different Countries, Different Apps

20. May 2020

In order to combat the spread of COVID-19, as more and more countries are phasing out of lockdowns, the eye is on the use of contact tracing apps to help facilitate breaking the chain of transmissions. Contact tracing apps hope to bring a safer way to combat the spread of the pandemic and enable people to go back to a life that is closer to their previous normal. In this miniseries, we would like to present to you different contact tracing apps, as well as European Guidelines and the data protection problems arising from the technology.

Contact tracing apps mostly rely on localising the users of the phones and trace their whereabouts to analyse if they have gotten in contact with someone that has later tested positive for the coronavirus. Individuals who have been in close proximity of someone who is confirmed to be a carrier of the virus, will then be notified and asked to self-isolate for a certain period of time.

Due to this function, however, privacy is a big fear for a lot of users. It comes not only with the processing of personal data, but also tracing of movement and the collection of health data in order to be effective.

It is also important to note that there are different approaches to the purpose and use of anti-coronavirus apps all over the world. While this post focuses on portraying different contact tracing apps, there are also technologies that have a different purpose. For example, there’s apps that require the localisation of mobile data with the purpose to track movement streams and localize a potential future outbreak area. Another option currently in use in Taiwan would be using the localisation data of mobile devices to control and ensure that the lockdown and quarantine measures are being followed. In Hong Kong, the mobile app is paired with a wristband to track movement of the user and alert officials if they leave their dwelling.

However, as there are a lot of contact tracing apps used in different countries, with varying technology and also varying issues in the light of data protection. While a lot of countries immediately developed and released COVID-19 tracing apps, some are still trying to develop or test the technology with a commitment to data protection. In order to see the variety of different approaches to the matter, we are going to present some of the countries and the apps they are using or developing.

The following countries are some of the countries that have already implemented a contact tracing app to be able to counteract the spread of the virus quickly:

  • Austria – As one of the first European countries to jump to action, Austria has implemented the use of the tracing app project DP3T, which is backed by European scientists to be the best choice in terms of data protection. The handling of the data is transparent, as well as minimal and voluntary. The technology is based on Bluetooth identifiers in idea similar to the Google and Apple technology, and the data is stored in a decentralized manner.
  • India – The Aarogya Setu app has been downloaded over 13 Million times within the first week of its release. It uses Bluetooth as well as GPS signals to trace devices, and collects a lot of sensitive data like names, birthdates, and biometric information. Due to a backlash in regards to data protection, it has been stated that the technology uses unique IDs to keep the data anonymized, that there is no access by third parties and that the data is only stored securely in case of a positive COVID-19 test.
  • Singapore – In Singapore, the TraceTogether app is a voluntary tracing app that uses Bluetooth and the mobile number of users in order to track their proximity to other devices. It does not use location data, however, and exchanges temporary encrypted user IDs in order to know who a device came into contact with. The encrypted IDs can only be decoded by the Ministry of Health, which holds the only decryption key.
  • South Korea – In South Korea, two apps are being used in conjunction, though the focus is rather to keep away from areas with infected people. One app, Corona 100m, was made by a private developer and notifies you if you come within 100 metres of a person that has tested positive for the virus. The app collects data such as diagnosis date, nationality, age, gender and location. The other app, Corona Maps, shows the location of diagnosed patients so you can avoid them.

On the other hand, some of the countries still working on the development include the following:

  • France – The StopCovid app under development in France is supposed to be ready by June, and is being criticized by many French politicians for the lack of regulation in the case of what happens with the data after the pandemic. France has also denied Google and Apple’s help with the development of the app, stating that the risks of misuse of the data are too high.
    Update: In the meantime, the French Data Protection Authority (CNIL) has released its second review of the contact tracing app on May 26, 2020, giving it a green light to continue after not seeing any major issues with the data protection concept. Despite using a centralized system which relies on pseudonymized and not anonymized data, the CNIL has stated that the government promises that there will not be any disadvantages and that the data can be deleted from the app.
  • Germany – Germany, much like France and other EU countries, has abandoned the joint PEPP-PT project in favour of coming up with their own national tracing app. As opposed to other countries, Germany sets much more hope in the joint venture with Google and Apple in an attempt to develop a privacy regulated app which is up to EU standards.
  • United Kingdom – The UK is currently planning on testing their contact tracing app system on the Isle of Wight, before they plan on rolling out the use of the app later in May. The app developed is using a more centralized approach for the storage of the data, which has been criticized by data protection lawyers. However, some have conceaded that in such a situation, the “greater justification” for the use of the data is given in the public interest and health of the citizens.
  • USA – As announced by tech giants Apple and Google, the joint development of a tracing app is on the way. The app will be operating over Bluetooth, and will exchange identifiers when two devices are near each other for 10 minutes. These identifiers change every 15 minutes to minimize extended tracing, and in case of a positive test the Public Health Authority may broadcast an alert with the consent of the infected person. For more detailed information, please see our previous blog post on the joint announcement.

While the use of contact tracing apps increases, the data protection issues do as well. Most of them deal with the question of governmental access and misuse of the data, as well as transparency and voluntary use of the apps. The European Parliament and the European Data Protection Board (EDPB) have published guidelines for location tracing apps to conform with data protection laws and regulations, which we will be presenting in an upcoming blogpost as part of this miniseries.

Overall, tracing apps seem to be becoming the focus of the pandemic containment. It is important to remember as a user that, while the pandemic is starting to become a new state of normal, a lot of countries will still try to counteract the spread of the virus, and location tracking technology is one of the most effective ways to do so. In such a light, users need to remain conscious of their country’s approach to tracing apps and the privacy issues they may cause.

In the second part of the series regarding COVID-19 contact tracing apps, we will be going further into detail on the EDPB’s Guideline on location tracing apps, and focus on the European expectations and regulation in regards to data protection on the issue.