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Decentralized Identity Verification System for Data Access to Prevent Data Exfiltration Ransomware
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  • Kazuya Takeuchi ,
  • Takako Kumamoto ,
  • Yunko Yoshida ,
  • Himari Fujima
Kazuya Takeuchi
Nagoya Institute of Cyber Technology

Corresponding Author:[email protected]

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Takako Kumamoto
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Yunko Yoshida
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Himari Fujima
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The escalating sophistication of ransomware has catalyzed the transition from traditional encryption-focused attacks to more pernicious data exfiltration techniques. This research proposes a Decentralized Identity Verification System to combat the amplified threats of data theft and extortion. The system integrates blockchain technology to establish a resilient identity management framework reinforced by multi-factor authentication and smart contract-based access policies. By addressing fundamental vulnerabilities enabling unauthorized data access, the system proactively reduces attack surfaces vulnerable to ransomware infiltration. Simulated attack scenarios reflect promising security enhancement outcomes across metrics including prevention of data breaches, access control efficiency and system responsiveness to threats. While scope remains for continued innovation, this exploration highlights the synergetic potential of cryptography, access governance decentralization for reshaping data protection against contemporary cyber risks.