He addresses such questions as: May a State ever respond to a computer network attack by exercising a right of national self-defense? and: Must attacks adhere to the principle of proportionality?

FORBES: Pace of US Cyber-Preparedness Accelerating

Defense officials reported no signs of cyberattacks on its ministry's computer network and had no immediate details about the broader shutdown.

WSJ: South Korea Banks, Media Report Possible Cyberattack