Microsoft has estimated that around 8.5 million computers around the world were affected by the recent global IT outage. It’s the first time the company has put a figure on the scale of the outage and suggests it could be the worst cyber event in history. On the official Microsoft blog, the company said that while the bug affected less than one percent of all computers running Windows, “the broad economic and societal impacts reflect the use of Crowdstrike by enterprises that run many critical services.” The glitch was caused by a corrupted update issued by security company Crowdstrike which c…