The draft for the Pentagons 2018 Nuclear Posture Review says the U.S. should only consider the use of nuclear weapons in extreme circumstances to defend the vital interests of the United States or its allies and partners. Large cyber attacks are considered extreme circumstances. The draft, called pre-decisional by the Pentagon, is currently being reviewed by the White House and the final version is expected to be released in February. It remains to be seen if the threat of nuking a country for pulling off large cyber attacks would serve as a deterrent or be doomsday.”]