In response to the coronavirus disease (COVID-19) outbreak , there is an ever-increasing number of national governments that are rolling out contact-tracing Apps to aid the containment of the virus. The first hugely contentious issue facing the Apps is the deployment framework, i.e. centralised or decentralised . Based on this, the debate branches out to the corresponding technologies that underpin these architectures, i.e. GPS, QR codes, and Bluetooth. This work conducts a pioneering review of the above scenarios and contributes a geolocation mapping of the current deployment. The  vulnerabilities and the directions of research are identified, with a special focus on the Bluetooth-based decentralised scheme .
To address the massive spike in uncertainties triggered by the coronavirus disease (COVID-19) , there is an ever-increasing number of national governments that are rolling out contact-tracing Apps to aid the containment of the virus. The first hugely contentious issue facing the Apps is the deployment framework, i.e. centralized or decentralized . Based on this, the debate branches out to the corresponding technologies that underpin these architectures, i.e. GPS, QR codes, and Bluetooth. This work conducts a pioneering review of the above scenarios and contributes a geolocation mapping of the current deployment. The Apps vulnerabilities and the directions of research are identified, with a special focus on the Bluetooth-inspired decentralized paradigm .
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In response to the
To address the massive spike in uncertainties triggered by the
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outbreak
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centralised or decentralised
centralized or decentralized
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Apps
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Bluetooth-based decentralised scheme
Bluetooth-inspired decentralized paradigm