The Role of Blockchain in Cyber Security

Dylan Rafferty (School of Computing, Engineering & Intelligent Systems, Ulster University, UK)
Kevin Curran (School of Computing, Engineering & Intelligent Systems, Ulster University, UK)


Cyber security breaches are on the rise globally. Due to the introduction of legislation like the EU’s General Data Protection Regulation (GDPR),companies are now subject to further financial penalties if they fail to meet requirements in protecting user information. In 2018, 75% of CEOs and board members considered cyber security and technology acquisitions among their top priorities, and blockchain based solutions were among the most considered options. Blockchain is a decentralised structure that offers multiple security benefits over traditional, centralised network architectures. These two approaches are compared in this chapter in areas such as data storage, the Internet of Things (IoT) and Domain Name System (DNS) in order to determine blockchain’s potential in the future of cyber security


Blockchain;Cybersecurity;Distributed ledgers;Bitcoin;Cryptocurrencies

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