WikiLeaks: CIA Program Used to Blame Hacks on Other Countries

And it could very well be that the CIA program blamed the DNC hacks on another country (Russia). 

‘UMBRAGE’ might be the most terrifying secret revealed by the new WikiLeaks files

The CIA had a special programme allowing it to trick people into thinking they had been hacked by other countries, according to WikiLeaks. The agency was cataloguing the hacking methods of outside cyber attackers, including those from Russia, according to files published by the organisation.