• Ransomware is a type of malware
  • It restricts user access to his computer files until a ransom is paid to unlock it
  • The files in the infected computers gets locked up in such a way that the user cannot access them anymore.
  • It then demands payment in cryptocurrency Bitcoin to retrieve the locked files.
  • Why in news?
    • A Ransomware named WannaCry has attacked 75,000 computers worldwide in 99 countries.
    • WannaCry has used a hacking tool named Eternal Blue
    • The hacking tool Eternal Blue gives unprecedented access to all computers using Microsoft Windows.
    • It was developed by NSA to gain access to computers used by terrorists and enemy states.

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