WannaCry based Ransomware Cyber Attack began on 12 May 2017. It hit hundreds of PCs and Servers running outdated and unpatched version of Microsoft Windows OS. Users who had not installed Microsoft update patch MS 17-010 were mostly vulnerable to this attack. After gaining access to the system, WannaCry encrypted the files of the user and displays the ransomware message. Users were required to pay either $300 or $600 worth of BitCoins to a particular wallet address within 3 or 7 days post which they were threatened that their files will be lost forever.
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