Earlier quoted context omitted.
It's not just company reps, the US government issued a statement to the effect: https://www.dhs.gov/node/23199
Read the statement very carefully. At no point do they actually say, or directly suggest that Russia is behind the Podesta and DNC leaks. The media and some politicians are full force memeing this, saying USG blames Russia for the hack and leaks. The statement does not say this in the slightest.
Those aren't really weasel words.