Catz that group is separate from Wikileaks. Assange acknowledged them and said that Wikileaks had a relationship with them for some time. I think it was in his interview with Forbes.
On another note, this truly is cyber warfare. The governments of the world are attempting to hide behind the pseudo-legitimacy of the legal system, but you can guarantee that these governments are willing to break their own laws to cover up the illegal acts that wikileaks is exposing.