CrowdStrike : What Happened?

Following 8.5 million Microsoft devices being hit by a faulty software update from CrowdStrike causing global chaos, we look at what happened, how, and why. 

The Worst Cyber Event In History 

The scale of effects of the disruption caused make this event, which began on 18 July (Microsoft) or 19 July (according to CrowdStrike), makes it the worst cyber event in history, beating the WannaCry cyber-attack in 2017 where 300,000 computers in 150 countries were affected.