Amid a desperate situation Friday in which hundred of thousands of ransomware attacks pelted computers in nearly 100 countries, one stroke of good fortune hit, too. As the malware analysis expert who calls himself MalwareTech rushed to examine the so-called WannaCry strain, he stumbled on a way to stop it from locking computers and slow its spread. All it took was ten bucks, and a little luck.

https://www.wired.com/2017/05/accidental-kill-switch-slowed-fridays-massive-ransomware-attack/?mbid=social_fb