a) Big US enterprises are under attack from state-sponsored actors on a daily basis, so it's not that weird. It's not like the NSA weren't caught with their hands in the cookie jar either.
b) If you name the state you think is behind it, you better be ready for the diplomatic repercussions between the US government and the rogue state, as well as potentially stopping doing business in that state (see Google and China)
b) If you name the state you think is behind it, you better be ready for the diplomatic repercussions between the US government and the rogue state, as well as potentially stopping doing business in that state (see Google and China)