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Surgery Canceled When Hospital IT Failed
- Patrick Ward had his open-heart surgery canceled when hospital computers went dark due to the WannaCry attack.
- The outage forced staff to use pen and paper, cancel appointments and divert critical patients to other hospitals.
Malware Reused Legitimate Tools
- WannaCry hijacked legitimate Windows crypto tools and renamed them to cause global havoc.
- The worm scrambled files worldwide, infecting hundreds of thousands of machines in hours.
Heroic Kill‑Switch From A Bedroom
- Marcus Hutchins, a 22-year-old researcher, found a kill-switch in the WannaCry code and registered its domain.
- Registering the domain immediately halted the worm's spread by tricking infections into stopping.