Blockchain Applications in Data Security and Privacy

Blockchain technology has emerged as a revolutionary tool for enhancing data security and privacy across industries. This paper explores blockchain?s applications in secure data storage, access control, and privacy - preserving mechanisms. By leveraging decentralization, immutability, and cryptographic techniques, blockchain offers robust solutions to modern cybersecurity challenges. The study highlights key use cases, benefits, and challenges, with a focus on data integrity, user privacy, and trustless environments.