The massive WannaCry malware attack crippled more than 20% of hospitals in the United Kingdom and affected more than 200,000 victims in 150 countries. The software, which spreads among Windows computers, infects and then locks up individual machines, demanding a ransom. The attack mostly impacted computers in Europe and Asia and for the most part spared North America. Microsoft president Brad Smith calls for the world to adhere to a set of Geneva Convention-like rules in cyberspace. Smith and others have long advocated that governments need to pledge not to engage in cyberattacks that target civilian infrastructure.”]