Wow, what an empty article. An official unwilling to be identified asserts the default (not tampered with), and then implies malicious intent on Russia's behalf as if it were a side note.

If we have a credible reason to think Russia is unilaterally attacking our infrastructure in a way we don't do to other nations (e.g. reading tapping their president's phone) then please provide the evidence to the public straight up. Otherwise, don't insinuate.