Given the protracted outage of Kyivstar’s (Ukraine’s largest mobile operator) network after a major cyberattack, its competitors remain limited in how many Kyivstar clients they can service, Petro Chernyshov, former head of Kyivstar, told NV Business on Dec. 13. Read also: Vodafone, Lifecell report network issues after Kyivstar cyberattack Ukrainian mobile operators have limited technical […]