Owing to its decentralized, persistency, privacy, and auditability features, blockchain technology has gotten a lot of attention from both academia and industry. The usage of Blockchain technology in a wide range of applications, as well as its implementation problems, were investigated in this chapter. Due to the rapid advancement of technology, blockchain has swiftly become one of the most popular Internet technologies in recent years. Blockchain has restored confidence as a decentralized and distributed information management system, offering security, confidentiality, and integrity of data without the need for a third party, thanks to its inbuilt encryption and consensus mechanism. The current state of blockchain applications in cybersecurity was thoroughly investigated in this chapter. To address the security issues, the chapter looks at the advantages that blockchain has brought to cybersecurity, as well as current blockchain research and uses in cybersecurity. Bitcoin isn't impervious to misunderstandings about pseudonymity, privacy, and anonymity. Exclusively pseudonymous transactions are available with Bitcoin. Because Bitcoin is a decentralized worldwide public record, pseudonyms may be de-anonymized by analyzing blockchain usage trends. A lot of firms claim to have improved privacy by combining Bitcoin transactions from various users. Nevertheless, this entailed relying on a third party, which was not always safe or advantageous.

The blockchain innovation actualizes a decentralized completely duplicated attach just record in a shared organization, initially utilized for the Bitcoin digital currency. Blockchain in its effortlessness is a progression of associated information structures called blocks, which contain or track all that occurs in any disseminated frameworks on a distributed organization.

The chapter will discuss about the security and privacy issues in blockchain technologies and its applications and challenges. It also explore the architecture and protocols related to blockchain technology. The book chapter also highlights the role of blockchain technology in cybersecurity. The chapter will also enlighten the readers about the application of blockchain technology in corporate governance. The chapter will expose the security and privacy concerns in blockchain that will be helpful for corporate governance officials, blockchain technology enthusiasts, students, PhD scholars and researchers.