• Neha Anand
• Arpita Vishwakarma
• Dr. Yusuf Perwej
• Vaibhav Gupta
• Sameeksha Gupta

As the digital realm expands, cybersecurity has become essential for secure communication, data integrity, and organizational resilience. A decentralized public ledger known as a blockchain facilitates secure transactions across untrusted network nodes. Its essential role in bitcoin systems, where it ensures secure and decentralized transaction records, has garnered significant attention. Over the last decade, Blockchain has garnered significant attention from several businesses because to its potential to revolutionize multiple sectors, including cybersecurity. Nonetheless, this field of inquiry is nascent, and several concerns about blockchain's effectiveness in cybersecurity need more examination. This study used a qualitative research approach to assess the contemporary applications of blockchain-based security and their appropriateness within the current cybersecurity landscape. This research also examined the mechanisms via which blockchain upholds the security triangle. Results indicate that blockchain has significant potential for addressing contemporary issues. Blockchain has the potential to transform defensive mechanisms against the ever-changing threat landscape in the digital age by enhancing trust, transparency, and resilience in digital settings.

Blockchain, Cryptocurrency, Confidentiality, Privacy, Cybersecurity, Data Integrity, Decentralization

"Blockchain as a Paradigm Shift in Cybersecurity Defence Mechanisms", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 9, page no.f553-f558, September-2025, Available :http://www.jetir.org/papers/JETIR2509573.pdf

"Blockchain as a Paradigm Shift in Cybersecurity Defence Mechanisms", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 9, page no. ppf553-f558, September-2025, Available at : http://www.jetir.org/papers/JETIR2509573.pdf