Is this a serious question?
It's highly unlikely that the people behind an attack like this would come out (non-anonimously) and take credit. And it's unlikely they'll be caught. So does it matter to most peoplee if it's Russians, Americans, Iranians, North Koreans, or some other country?
If you're a 3-letter agency, you'd want to know and potentially arrest them, but as a random guy on the internet, or even a maintainer, I really don't think it matters.
Why would you steal the key when you're already in the house ?
And for the high profile, like some Iranian scientist who has the code to something important, they wouldn't use things like bitwarden.
I really see no use case when the nsa would need access to your bitwarden vault.
Not really, we already know that NSA attempts shit like this all the time, if that came out, it'd be the same as the Snowden leaks meaning, a bunch of nerds going "Huh, who could have predicted this?". I don't see the point in it being Russia, China or the US, I'd like it as much if the US did it as Russia, so that's why I asked why it matters.
for threat intel people, a lot.