Today, the assessment that a major cyber attack poses a threat to financial stability is axiomatic— not a question of if, but when. Yet the world’s governments and companies continue to struggle to contain the threat because it remains unclear who is responsible for protecting the system.Today, the assessment that a major cyber attack poses a threat to financial stability is axiomatic— not a question of if, but when. Yet the world’s governments and companies continue to struggle to contain the threat because it remains unclear who is responsible for protecting the system.