WannaCry ransomware attack - WikipediaThe WannaCry ransomware attack was a worldwide cyberattack in May 2017 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.[4] It propagated by using EternalBlue, an exploit developed by the United States National Security Agency (NSA) for Windows systems. Etern
