CIA is Longhorn?

Came across interesting article, though many of us here may respond "What else is new?"

Some quotes:
"To folks at the cybersecurity firm Symantec, the hacking group they call "Longhorn" has always seemed like a state actor."
"They now believe that "nation-state attacker" is the CIA."

http://mashable.com/2017/04/10/symantec-...tqEJYHlOqM