WannaCry One Virus 150 Countries
The Cyberattack That Crippled the World — WannaCry
On 12 May 2017, WannaCry combined ransomware with a self-spreading worm and disrupted computers across roughly 150 countries. This documentary explains SMB, EternalBlue, the missing patch, NHS disruption, the accidental kill switch and why outdated systems can become physical-world risks.