[mistermann]

>> Has there been any evidence provided that this must be Russia?

> The methods utilized in this compromise are consistent with methods utilized in other attributed breaches not disclosed.

I am unable to understand what meaning I should extract from your comment.

My expectation is that an answer to my question must be one of: Yes, No, or Unknown (and possibly accompanied by additional commentary).

Would a proper interpretation of your answer be either of these?:

- "No, there has not been any evidence provided that establishes that this must be Russia."

- "There has not been any evidence provided that establishes that this must be Russia, therefore it is UNKNOWN whether this is Russia."