Decentralized Identity Verification System for Data Access to Prevent
Data Exfiltration Ransomware
- Kazuya Takeuchi ,
- Takako Kumamoto ,
- Yunko Yoshida ,
- Himari Fujima
Abstract
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.