Ransomware virus 'WannaCry' plagues 100k computers across 99 countries
Ransomware 'WannaCry' attack explained
Global Cyber Attack Chaos Wanna Cry Ransomware
Playing with WannaCry Ransomware
The WannaCry ransomware attack was a May 2017 worldwide cyberattack by the WannaCry ransomware cryptoworm, which targeted computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the Bitcoin cryptocurrency.