The US Department of Homeland Security reported this, Ukrinform reported referring to a foreign information agency. “The attack probably used the BlackEnergy computer virus that entered the Ukrainian system through the opening of an infected Microsoft Word application”, – said the Ministry. Experts believe the incident that happened on December 23 and led to the disconnection of customers of Prykarpattiaoblenergo was the first case of blackout due to the cyber-attack. … Continue reading US Claim BlackEnergy Virus Attacked Ukrainian Power Companies