To stop the ransomware pandemic, start with the basics

TWENTY YEARS ago, it might have been the plot of a trashy airport thriller. These days, it is routine. On May 7th cyber-criminals shut down the pipeline supplying almost half the oil to America’s east coast for five days. To get it flowing again, they demanded a $4.3m ransom from Colonial Pipeline Company, the owner. Days later, a similar “ransomware” assault crippled most hospitals in Ireland.Such attacks are evidence of an epoch of intensifying that will impinge on everyone, from tech firms to schools and armies. One threat is catastrophe: think of an air-traffic-control system or a nuclear-power plant failing. But another is harder to spot, as cybercrime impedes the digitisation of many industries, hampering a revolution that promises to raise living standards around the world.