The cyberattack on Kyivstar was one of the most powerful telecom breaches seen in Europe in its entire history.

Oleksandr Fedienko, head of the Cybersecurity Subcommittee of the Verkhovna Rada's Committee on National Security and Defense, said this in an interview with Ukrinform.

"Ukraine – that is, its telecom operator, Kyivstar – suffered one of the most powerful cyberattacks in Europe, that’s for sure, in the entire history of all operators, which led to a temporary halt of all services," he noted.

Answering the question about the versions of the incident with Kyivstar, the MP expressed the opinion that there may be a Russian trace in the cyberattack.

The head of the Verkhovna Rada’s Cybersecurity Subcommittee at the Committee on National Security and Defense expressed his opinion about the cyberattack on Kyivstar.

"As for what happened and is happening, I think that one team worked with the channel where information flows and another team may have worked with the core and hardware. But, most likely, they were somehow exposed and the effort was launched to contain damage. And when they realized that they had been exposed, they killed everything," he believes.

The parliamentarian is convinced that it was no ordinary hackers who were involved in the cyberattack on the telecom operator.

"But Kyivstar did find backups. I don't know where they got them, but they did their job well so we must praise that effort by their team. It’s day three since the attack but they (for the most part - ed.) have restored the network,” Fedienko said.

Answering the question about the damages from the cyber incident, the legislator noted that it is about reputational damages, lost profits, compensatory costs that Kyivstar will incur in order to save face, etc.

"However, if we try to assess in general what this has resulted in for our country, unfortunately, it will be practically impossible," the lawmaker believes.

Answering questions about the possibility of personal data leaks, he said he could neither confirm nor deny that.

Answering questions about the possibility that hackers could bring down all operators in one fell swoop, the lawmaker cast doubts on such a possibility.

"Putting down in all three operators - hypothetically, everything is possible these days, but I don't believe it is possible, really," Fedienko said.