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12/05/2017 WannaCry ransomware attack

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ABC Nightly News: WannaCry ransomware attack

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Ransomware virus 'WannaCry' plagues 100k computers across 99 countries

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Ransomware 'WannaCry' attack explained

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Global Cyber Attack Chaos Wanna Cry Ransomware

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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.