Many organisations across the globe have today been faced with the ‘Blue Screen of Death’ on their Microsoft PCs caused by a faulty cyber-security update. The inability to reboot their systems has led to mass disruption.

Earlier today many organisations, firstly in Australia, started reporting “IT issues”. In particular, Microsoft’s Windows 10 PCs were displaying the ‘Blue Screen of Death’, with the user then unable to reboot the system.

What started as one or two reports has escalated to a mass global outage, with reports streaming in from firms and institutions from all corners of the globe.

Emergency services across the world are affected, flights are grounded at many major international airports, trains are being delayed, broadcasters have gone off air and in-store payments in many retailers have gone offline.

So what has caused this unprecedented mass outage?

According to the BBC, a spokesperson for Australia’s home affairs minister said the outage appeared to be related to an issue...