Vaccine pass system freezes
By Lee Hae-rin
A smartphone screen shows an error message from the digital vaccine certification system at a restaurant in Seoul during lunchtime, Monday. Multiple cases of people unable to access COOV, the Korea Disease Control and Prevention Agency's smartphone application for vaccine certification, were reported around lunchtime on the day the vaccine pass became mandatory for use in restaurants, cafes and other multi-use indoor facilities. Yonhap