Millions in Canada and around the world woke up to computers displaying the so-called ‘blue screen of death' on Friday. Crucial Internet-based services were knocked offline, the culprit being a flawed software update that caused chaos and confusion. At the heart of the massive disruption was the cybersecurity firm ‘Crowdstrike.’ Its customers include some of the biggest clients in the world as well as emergency services, small businesses and government offices. Among those hardest hit were travellers — more than 5,000 flights were cancelled worldwide. Eric Sorensen has more on the chaos caused by the outage in Canada. Those travel headaches hit passengers around the world and while many airlines have resumed services, that technical glitch is causing continued chaos for other industries, including banking and health services. Crystal Goomansingh looks at the global effort to get businesses back online.