Kyivstar security incident history
Hacking, data breaches and other security incidents involving Kyivstar, with related coverage.
Incidents: 1 · Most recent
Cyber-attack on Ukraine's Kyivstar knocks out telecoms services
Impact: Telecoms services disrupted, part of infrastructure damaged, revenue losses estimated at about $100 million
On 12 December 2023, Kyivstar, Ukraine's largest mobile operator, was hit by a cyber-attack that disrupted telecoms services and damaged part of its infrastructure. Parent company VEON announced on 19 December that services had been restored. Revenue losses from the attack were later estimated at about $100 million, and Ukraine began gathering evidence to prosecute the attackers.
Related reports: 11 · last report →