A failure in the network of Ukraine’s largest telecoms operator Kyivstar, which occurred on Tuesday morning, was caused by a hacker attack, but subscriber data was not compromised, the company involved law enforcement agencies and special government services in eliminating the failure, and promises compensation to customers.

“On the morning of December 12, the Kyivstar communications network became the target of a powerful hacker attack, which caused a technical failure, as a result of which communication services and Internet access were temporarily unavailable,” the company said on Tuesday.

It is indicated that in order to record the circumstances and consequences of illegal actions to interfere with the activities of the Kyivstar network, the operator attracted representatives of law enforcement agencies and special government services who are now working in the company’s office.

“Today it is known that the personal data of subscribers has not been compromised. Currently, the operator’s specialists are working to eliminate the consequences of the hacker attack to quickly restore communications and provide services,” the company emphasized.

It noted that it would definitely provide compensation to subscribers who had no connection or could not use the operator’s services, and also again apologized to subscribers for the temporary inconvenience.