Rob Morgus wrote in War on the Rocks about Russian hackers:
Late in May 2014, a group calling itself CyberBerkut leaked a map of the Ukrainian Dnipropetrovsk Oblast administration’s IT resources, information on the Central Election Commission of Ukraine’s servers, and the correspondence of its staff. In the following days, which included the country’s presidential election, CyberBerkut claimed they had again compromised the election commission’s servers, leaked more confidential information, conducted a distributed denial of service (DDoS) attack the commission’s website (which instructed potential voters how and where to vote), and blocked the phones of election organizers. The group also released documents implying that the recently appointed governor of the Dnipropetrovsk Oblast, Igor Kolomoisky, was complicit in pro-European Ukrainian plans to promote the “correct” candidate for president of Ukraine.
Despite the best effort of the Russian group behind CyberBerkut, the center-right, pro-European Petro Poroshenko won the Ukrainian presidency. But CyberBerkut wasn’t finished. Almost exactly five months later, the group used similar tactics in the days preceding the Ukrainian parliamentary elections. The results were largely the same: Pro-European candidates won the majority of seats. An uninitiated observer might be keen to discard these events as failed electioneering. After all, Moscow did not succeed in getting its men elected. But to label the operation a failure is to assume that the primary goal was to get pro-Russia officials elected. Over the course of the past four months, we have seen similar operations unfold in the United States, and — as was the case in Ukraine — there are reasons to believe that swaying the election is not the primary objective. Just as in the case of the CyberBerkut incidents, among the key observers of these operations in the United States have been cyber-security firms like FireEye. The manager of their information operations analysis team recently shared some of their findings with me, which informs the analysis below.