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WannaCry – aka WCry or WanaCrptor – is one of the most dangerous ransomware infections that initially surfaced in a worldwide strike in May 2017, affecting over 150 nations. This ransomware outbreak in 2017 wreaked havoc on hospitals, banks, and telecommunication firms all around the world. It has worm-like qualities and uses the SMBv1 vulnerability EternalBlue to propagate through a computer network. WannaCry encrypts user data and demands a Bitcoin payment in order to unlock them.