Security News > 2023 > December > Ukraine's largest mobile carrier Kyivstar down following cyberattack
Kyivstar, Ukraine's largest telecommunications service provider serving over 25 million mobile and home internet subscribers, has suffered a cyberattack impacting mobile and data services.
"This morning, we were the target of a powerful hacker attack. It caused a technical failure, as a result of which services were temporarily unavailable," reads a statement from Kyivstar.
Kyivstar says they reported the incident to law enforcement and other state services.
Independent internet observatory NetBlocks confirmed that Kyivstar internet services are currently unavailable, showing a sharp drop in traffic as of this morning.
For those impacted by the outage, Vodafone Ukraine stated on X that their roaming service is available, noting that Lifecell subscribers are already taking advantage of their services.
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