• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.314-316
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• 2017

Ransomware, a malicious program that requires money and then locks computers and files on network users for financial harvesting, will continue to evolve. Ransomware is a threat in mail systems that send and receive business information. By using Block Chain, Distributed Ledger technology, it is designed to be a safe mail system in which the automatically generated Ramsomware symptom data is directly linked to the security policy in the enterprise.