BLOCKCHAIN CYBERSECURITY: THREATS, RISKS, AND PROTECTIVE MEASURES

As blockchain and cybersecurity continue to transform the landscape of digital finance and online transactions, they also bring forth a new set of security challenges. In a decentralized environment where traditional models of control and data protection are redefined, cybersecurity emerges as a critical safeguard. Blockchain Cybersecurity: Threats, Risks, And Protective
Measures delves into the multifaceted security requirements of this dynamic domain. It offers a comprehensive understanding of the risks and vulnerabilities affecting blockchain applications and Cybersecurity systems, while equipping readers with effective preventive strategies and countermeasures.
The book begins by introducing blockchain fundamentals, tracing its evolution and core principles. It explores blockchain architecture, cryptographic mechanisms, consensus protocols, and provides an overview of leading platforms such as Ethereum and Hyperledger. These foundational topics establish the groundwork for the more advanced, security-focused discussions that follow. Subsequent chapters analyze real-world attack vectors and threats targeting blockchain and cryptocurrency ecosystems. Detailed examinations of double-spending, 51% attacks, Sybil attacks, and emerging quantum threats reveal the vulnerabilities inherent in decentralized systems. The text also investigates security issues unique to cryptocurrency platforms, drawing lessons from major breaches and incidents in the field. Further, the book explores cybersecurity within decentralized finance (DeFi), emphasizing the protection of smart contracts, DNS
integrity, and DDoS mitigation. The concluding chapters outline proactive defense measures to strengthen blockchain-based applications—addressing ransomware, phishing attacks, and the
secure development of smart contracts. Serving as a vital reference for cybersecurity professionals, blockchain developers, and researchers, this book blends theoretical insights with practical case studies. It empowers readers to understand, anticipate, and mitigate threats in order to build a secure and sustainable future for decentralized finance and blockchain technology.