Pat Lawrence in The Nation concludes the so-called Russia hack of the DNC was instead a leak, an inside job

Here:

There was no hack of the Democratic National Committee’s system on July 5 last year—not by the Russians, not by anyone else. Hard science now demonstrates it was a leak—a download executed locally with a memory key or a similarly portable data-storage device. In short, it was an inside job by someone with access to the DNC’s system. This casts serious doubt on the initial “hack,” as alleged, that led to the very consequential publication of a large store of documents on WikiLeaks last summer.