Except there is evidence. You just don't seem to understand it.
Failure to understand is the 2nd step.
The 1st is to present the evidence.
You haven't yet done that.
We've talked about signatures before. It is also possible to track the source of most hacking. So there is evidence. The fact that the CIA isn't handing it over to Revoltingest for his perusal doesn't mean it doesn't exist.
You're stating that evidence exists.
This is not presenting it.
It is theoretically possible to fake these things. But it's like fingerprints. Is it possible to cut off someones finger and use to to tie them to a murder? Sure. Is it likely? No.
You say something is likely, but without evidence.
We're to take the word of agenda driven government agencies, who
are neither certain nor in agreement about their secret evidence.
And even if it turns our that Evil Ivan did it, how is it actionable info?
No one has proposed any reasonable change in course.
So we have an unevidenced conspiracy theory which has no value even if proven.
The only reasonable explanation is a post-loss tantrum.