UK’s Information Commissioner’s Office has announced that the government can use anonymized mobile phone tracking data to help fight the current coronavirus pandemic. ICO s Deputy Commissioner Steve Wood said in a statement that as long as the government anonymizes the tracking data, it has the green light to do so as no individuals can be identified and privacy laws aren’t breached. Singapore, South Korea and China have already made us of mobile tracking to fight the spread of the SARS-CoV-2 virus. Israel and the US both want to make use of similar data collection practices to keep track of how the virus spreads.
Source: https://www.bleepingcomputer.com/news/security/uks-ico-says-mobile-tracking-is-legal-during-covid-19-crisis/

