It doesn't matter the country. When any country is accused of hacking its always "how do you know, it can all be faked, its a flase flag". It's weird deflections and pretending hacking is a ghostly nightmare done by geniuses never seen by the light of day. The reality is so much more humble: it's a desk job done by above average workers with a couple smart ones captured by nation states. They make mistakes and thus can be tracked. But nope, each time every discussion has to rehash a sophomoric discussion on the nature of truth and knowledge.
Unless it's the US as hacker. Then no one is inpressed.