In the context of the state of health emergency linked to the COVID-19 pandemic, and more particularly the overall `lockdown-lifting` strategy, the CNIL was consulted by the Secretary of State for Digital Affairs on the possible implementation of `StopCovid`: a voluntary contact tracing application. The members of the CNIL adopted their opinion on 24 April 200. In the exceptional context of crisis management, the CNIL considers the system to be compliant with the General Data Protection Regulation (GDPR) if certain conditions are met. It notes that a number of safeguards are provided by the government's plan, including the use of pseudonyms. However, the CNIL calls for vigilance and underlines that implementation can only be deployed if its usefulness is sufficiently proven and if it is integrated into an overall health strategy. It calls for certain additional safeguards. It highlights certain aspects related to security, and makes technical recommendations. The CNIL asked to be consulted again after the debate in the French Parliament, should the project be implemented, in order to examine the proposed implementation of the application.