As Cybersecurity Awareness Month comes to a close, it ends having given us all a small glimpse into the potential chaos that awaits us if hackers had their way. A couple of weeks ago, Amazon Web Services suffered a massive outage that took down websites, apps, payment systems, and smart-home devices across the globe. The culprit wasn’t a hack — it was a software automation bug in AWS’s internal DNS management. But that’s exactly what makes it terrifying. A simple misfire in one system cascaded through hospitals, banks, airlines, and retailers in minutes. Now imagine if it hadn’t been an...