A U.S. intelligence official told CBS News that the signature of the breach is Russian and the U.S. government has identified methods and techniques used by Russia in past hacks that mirror those used in the DNC incursion.

"We understand how hack groups use the Internet to attack. The pattern and launch point used before by Russians is similar to the DNC attack," the official said.

A cyber analyst quoted by the Associated Press, Michael Buratowski with Fidelis Cybersecurity, which investigated the hack, said he was near certain that Russia was the culprit, based on the use by the hackers of "Russian internet addresses, Russian language keyboards, and the time codes corresponding to business hours in Russia, as well as the sophistication of the hack," according to the AP.
http://www.cbsnews.com/news/russian-...d-on-dnc-hack/


In related popcorn-worthy readings, see also https://twitter.com/wikileaks/status/757335823754887168