Like one Russian friend of mine joked: "if you need your tax system hacked, let us know."
That it is published, does not necessarily mean, it is truth.
It is a long standing play: the farthest is likely an enemy. Likely, Chinese hackers could do it or anybody who wanted to interfere. But if it was hacked, shows something for the ability of each individual government to protect themselves. Same is published of other, not only U.S., governments, like Britain.
It far easier to claim a hack, than to acknowledge, that Trump was _actually_ voted for.