Blockchain Applications in Cybersecurity: Strengthening Data Integrity and Authentication

Abstract

Abstract: Blockchain technology has emerged as an essential element in developing cybersecurity, especially in improving data integrity and authentication. This paper examines how blockchain’s decentralized and tamper-proof structure mitigates the increasing issues of safeguarding sensitive data and thwarting illegal access. Block chain utilizes cryptographic methods and distributed ledger technology (DLT) to guarantee that data is immutable, traceable, and resistant to alteration, so offering robust protection against cyber risks, including data breaches and fraud. The research examines how blockchain improves authentication processes through decentralized identity verification systems, diminishing dependence on old centralized agencies and enhancing both security and user privacy. Practical applications in sectors such as finance, healthcare, and supply chain management are analyzed to illustrate how blockchain effectively enhances security procedures, safeguards digital identities, and cultivates trust in more interconnected digital ecosystems. The results indicate that blockchain could transform cybersecurity by providing enhanced, more transparent, and more robust digital infrastructures.