RT Journal Article SR Electronic T1 How to fairly incentivise digital contact tracing JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP medethics-2020-106388 DO 10.1136/medethics-2020-106388 A1 Michele Loi YR 2020 UL http://jme.bmj.com/content/early/2020/07/08/medethics-2020-106388.abstract AB Digital apps using Bluetooth to log proximity events (henceforth, digital contact tracing) are increasingly supported by technologists and governments. By and large, the public debate on this matter focuses on privacy, with experts from both law and technology offering very concrete proposals and participating to a lively debate. Far less attention is paid to effective incentives and their fairness. This paper aims to fill this gap by offering a practical, workable solution for a promising incentive, justified by the ethical principles of non-maleficence, beneficence, autonomy and justice. This incentive is a free phone optimised for running such app.