According to Reuters, Google has shut down a service it provided to wireless carriers globally to assess their network coverage. Global Mobile Network Insights service had been launched in 2017 and consisted mainly in a map showing carriers signal strengths and connection speeds in a range of areas. This system used data from Android users who had opted into sharing location history and usage diagnostics with Google. But Google decided in April 2019 to shut down the service due to privacy concerns, and the possibility that it may attract the scrutiny of users and regulators in the future.