Guideline 04/2020 – Use of location data and contact tracing tools in the context of COVID-19 outbreak
Section 2.1 Sources of location data
9 There are two principal sources of location data available for modelling the spread of the virus and the overall effectiveness of confinement measures:
location data collected by electronic communication service providers (such as mobile telecommunication operators) in the course of the provision of their service ; and
location data collected by information society service providers’ applications whose functionality requires the use of such data (e.g., navigation, transportation services,etc.).