Mobile operator Kyivstar reports on the gradual restoration of network operations after a powerful cyberattack.

According to the company, mobile internet is already working in some regions of Ukraine. 

During the past day, the company managed to restore international roaming, mitigate problems with call interruptions, and almost completely restore the operation of “Home Internet” service.

Currently, more than 95% of primary stations for the mobile network on the country’s territories controlled by Ukraine are working. 

More on the hacker attack on Kyivstar

On the morning of December 12, subscribers of Kyivstar, one of the largest mobile communication networks in Ukraine, started to complain about the lack of internet access. The company’s app and website stopped working too. The disruption also affected national Kyivstar roaming and some ATMs. 

Ground Forces Command reported the network failure didn’t impact Ukrainian troops. 

Later, Kyivstar reported that the shutdown happened because of the hacker attack. Special Services of Ukraine opened an investigation into the incident, with one of the versions explaining it as a cyberattack organized by Russian Special Services.

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Kyivstar planned to get the network up and running again in one day. They also promised to provide compensation for everyone affected by the cyberattack. 

Russian hackers from the “Solntsepek” group claimed responsibility for the attack in their Telegram channel. They stated they destroyed 10 thousand computers, over 4 thousand servers, and all cloud storage systems and backups. They said the attack was launched because Kyivstar provides Ukrainian Army, government, and law enforcement with communication services. Kyivstar didn’t confirm the existence of a data leak. 

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