Aggregated data from Three mobile customers used to monitor Covid-19 travel restriction compliance

The data, described as a Staying Local Indicator bulletin by the Central Statistics Office, was first published last week. File picture: Niall Carson/PA Wire

Mobile phone carrier Three is providing the aggregated movement data of its 2.4m Irish customers to the Department of Health and the CSO in order to monitor compliance with Covid-19 public health and movement restrictions.

The deal between the Department and Three sees the movement data from all handsets on the carrier’s network anonymised and grouped in order to show what proportion of people have been straying more than 10km from home.