Article talking about the files here. [0]

Also, I find it interesting that the Clinton Foundation has come out saying they have been breached as well. [1]

[0] http://www.washingtonexaminer.com/hacker-releases-clinton-fo... [1] http://www.bloomberg.com/news/articles/2016-06-21/clinton-fo...

paragraph of interest:

"Clinton Foundation officials said the organization hadn’t been notified of the breach and declined to comment further. The compromise of the foundation’s computers was first identified by government investigators as recently as last week, the people familiar with the matter said. Agents monitor servers used by hackers to communicate with their targets, giving them a back channel view of attacks, often even before the victims detect them."