“Advances in Blockchain Security: Threat Models, Smart Contracts, Exploits, and Privacy-Preserving Solutions in Decentralized Systems”
Keywords:
Blockchain Security, Threat Modeling, Smart Contracts, DeFi Exploits, Zero-Knowledge Proofs, MEV, Post-Quantum Cryptography.Abstract
Blockchain technology has evolved from a cryptocurrency infrastructure into a programmabledecentralized computing paradigm underpinning financial systems, identity frameworks, and crossorganizational data exchange. Despite its cryptographic foundations, large-scale deployments haveexposed systemic vulnerabilities that extend beyond consensus correctness. Recent exploit patterns demonstrate that the principal risks in decentralized ecosystems
References
Satoshi Nakamoto, Bitcoin: A Peer-to-Peer Electronic Cash System, White Paper, 2008, pp. 1–9.
Vitalik Buterin, Ethereum: A Next-Generation Smart Contract and Decentralized Application Platform, White Paper, 2014, pp. 1–36.


