Both the number and severity of global cyber attacks are rising. Last month, state-backed hackers, widely presumed to be Russian, targeted Colonial Pipeline, disrupting critical oil supplies on the eastern coast of the United States. In South-east Asia a few months earlier, digital intruders went after Singtel and Singapore Airlines, both of which suffered data breaches. Japan says it expects next month's Tokyo Olympics to come under digital assault too. Please subscribe or log in to continue reading the full article. Get unlimited access to all stories at $0.99/month Latest headlines and exclusive stories In-depth analyses and award-winning multimedia content