Sources: US officials warned DNC of hack months before the party acted
The revelation raises questions about whether the DNC could have done more to limit the damage done by hackers suspected of working for Russian intelligence.
The DNC brought in consultants from the private security firm CrowdStrike in April. And by the time suspected Russian hackers were kicked out of the DNC network in June, the hackers had been inside for about a year.
A person briefed on the DNC's response says the warning from the FBI and other agencies wasn't specific, and that the extent of the problem wasn't clear when the initial warnings came. DNC officials hired outside help after additional indications surfaced that their systems were compromised.
The DNC breach occurred around the same time as breaches of U.S. government systems at the State Department and the White House. Analysts from the National Security Agency found signatures in those breaches that led them to suspect there were other intrusions outside the government, including at the DNC.
http://edition.cnn.com/2016/07/25/politics/democratic-convention-dnc-emails-russia/
