Former director of the United States National Security Agency (NSA), Keith Alexander, has called upon the United States, Australia, and other allies to operate under a unified cyber defence “radar” to defend against international cyber attackers and protect critical infrastructure. Speaking at an Australian Strategic Policy Institute webinar alongside the head of the Australian Cyber Security Centre (ACSC), Alexander stated that cyber defence was vital in the modern era given the potential ease of attack from remote locations. “Cyber is going to be hugely important for our future,” Alexander said. “It’s the one area where adversaries can attack Australia and the United States without trying to cross the oceans.” In particular, Alexander suggested a radar-like mechanism that would allow organisations to report cyber attacks to a centralised location visible by the cyber security departments of both governments and private organisations. “We need an ‘event generator’ that shows events that are …