Hackers disrupted a Ukrainian internet service provider Thursday, and engineers were still working on restoring service as of Friday afternoon Ukraine time.
It wasn’t immediately clear who carried out the hack. The internet provider did not explicitly blame Russian hackers for the incident, but said “the enemy” was responsible, a term that Ukrainian officials have used to refer to Russia during the war.
“This is the second time since the beginning of the war that we have suffered from a hacker attack on key network nodes,” Triolan, an internet provider with customers in Ukrainian cities such as Kyiv, Kharkiv and Dnipro, said in a statement on the Telegram messaging platform on Thursday.
The hack caused outages across Triolan’s service areas on Thursday, according to Doug Madory, director of internet analysis at network monitoring firm Kentik.
Triolan said Thursday that 70% of the network “nodes” that support internet services were restored.
“We are trying to stop the hackers as quickly as possible and restore network operation in all areas,” the Triolan statement said. The provider told CNN through its Facebook account on Friday that its engineers were still working on recovering from the hack.
Cyberattacks have played a supporting role in the war in Ukraine, with hacks on Ukrainian government websites and agencies occurring hours before Russian tanks rolled across the border.