Russian government hackers behind the breach into the US DNC, US experts say

The Russian government is allegedly behind the recent hack on US Democratic National Committee (DNC) documents and communications, experts have said. The hack enabled the access to, among other, the entire database of opposition research on a presidential nominee Donald Trump. The DNC officials and involved experts reported that the hackers might have had penetrated the system about a year ago, staying under the radar. No US officials have attributed the attack to Russia. At the same time, the spokesman for Russian President denied that the government or related agencies were involved in the incident.