Britain Would Strike First In Cyberwar, Government Says

Britain Would Strike First In Cyberwar, Government Says | Fox News.
It would seem that each country is coming out saying they would conduct Cyberwar but no official word on what would constitute a Cyber Pearl Harbor where such a war would turn into a HOT WAR.  It does seem to me that the long range effects of a Cyberwar could be as bad on an economy as a conventional one, they cost seems to be much less financially.  Could that be the reason for this form of warfare’s growth?