"Identified" as the key verb here.
Identifying who is in some position.
I doubt that anything they have in hand would put these six "officials" in charge of a keyboard used to "hack" the DNC. Interesting that it took that long to figure out the hierarchy of Russian intelligence.
Personally I suspect that some idiot had a backup of some portion of the DNC's data sitting on a usb key that ended up under some leaves on someone's sidewalk in Dnepropetrovsk. "Just on accident". Due to an "outsourcing" error. By some cloud hosting company. With three letters in its name.