Major countries and nation-states are engaged in a “Cyber Cold War,” amassing cyber-weapons, conducting espionage, and testing networks in preparation for using the Internet to conduct war, according to a new report released by McAfee. In particular, countries gearing up for cyber-offensives are the US, Israel, Russia, China, and France, says the report, compiled by former White House Homeland Security adviser Paul Kurtz and based on interviews with more than 20 experts in international relations, national security and Internet security.