Maersk & NotPetya
This is a rivieting story by Wired on the NotPetya virus and how it wiped out the computer networks of companies worldwide in 2017 including Maersk. A fifth of the world's shipping capacity was shutdown for over 10 days. Shipping ports around the world had to revert to manual paper systems while Maersk IT workers flew in a sole unaffected DNS controller backup from a server in Ghana that happened to be knocked offline by a powercut before the infection.