The Intercept reports:
Russian military intelligence executed a cyber attack on at least one U.S. voting software supplier and sent spear-phishing emails to more than 100 local election officials just days before last November’s presidential election, according to a highly classified intelligence report obtained by The Intercept.
The top-secret National Security Agency document, which was provided anonymously to The Intercept and independently authenticated, analyzes intelligence very recently acquired by the agency about a months-long Russian intelligence cyber effort against elements of the U.S. election and voting infrastructure. The report, dated May 5, 2017, is the most detailed U.S. government account of Russian interference in the election that has yet come to light.
The report indicates that Russian hacking may have penetrated further into U.S. voting systems than was previously understood. It states unequivocally in its summary statement that it was Russian military intelligence, specifically the Russian General Staff Main Intelligence Directorate, or GRU, that conducted the cyber attacks described in the document
CBS News this afternoon independently confirmed the authenticity of the report. There’s much, much at the link above.