“In a hot cyber war, the first line of attack would not be like on Star Trek, with spectacular bursts of sparks flying out of computers. Instead it would be a stealth attack on the enemy’s military command and control infrastructure, to keep it from being able to strike, said Matt Devost, managing director of Accenture Security and a special government advisor to the U.S. Department of Defense.”

Source: What a real cyber war would look like