1 Introduction
2 Digital contact tracing frameworks
2.1 Decentralized Privacy-Preserving Proximity Tracing (DP-3T)
2.2 Pan-European Privacy-Preserving Proximity Tracing (PEPP-PT)
2.3 Other frameworks
2.4 Summary of contact tracing frameworks
3 Adversarial model
3.1 Adversaries
3.2 Assumptions
3.3 Types of adversaries
3.4 Data and other assets
3.5 Specific attacks
3.6 Mitigation techniques
4 Digital contact tracing mobile apps
4.1 Austria
4.2 Bulgaria
4.3 Croatia
4.4 Cyprus
4.5 Czech Republic
4.6 Denmark
4.7 Estonia
4.8 Finland
4.9 France
4.10 Germany
4.11 Hungary
4.12 Ireland
4.13 Italy
4.14 Latvia
4.15 Netherlands
4.16 Norway
4.17 Poland
4.18 Portugal
4.19 Slovakia
4.20 Slovenia
4.21 Spain
4.22 Switzerland
5 Conclusions
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