There just need to be one, with a good write up of the evidence and the evidence be better than "they used the same tools" or "their IP is in Russia". The linke

There just need to be one, with a good write up of the evidence and the evidence be better than "they used the same tools" or "their IP is in Russia". The linked article does not detail them. I have seen US TLAs blame China on really laughable evidences (and fail to do it properly on the one undeniable attack they did on GitHub)