Impact of smart contracts and cryptographic security on fraud prevention in Nigerian deposit money bank

Authors

  • Oluwaseyi Ayodele Adedipe Ajayi Crowther University, Oyo, Oyo State, Nigeria

DOI:

https://doi.org/10.33003/fujafr-2026.v4i1.328.250-263

Keywords:

Cryptographic security, Cyber fraud, Financial security, FinTech, Money laundering

Abstract

Purpose: Cyber fraud and money laundering are growing threats to the integrity of operations in the Nigerian banking sector, which undercuts the confidence of customers. This study examined the influence of FinTech solutions specifically smart contracts and cryptographic security on fraud prevention in Nigerian deposit money banks (DMBs), in view of the increasing incidence of cyber fraud and money laundering in the sector.

Methodology: The study adopted a quantitative research design, underpinned by the Technology Acceptance Model (TAM), agency theory, and control theory. A cross-sectional survey was conducted on 312 management and IT employees drawn from five selected DMBs in Lagos State. Data collected were analyzed using descriptive statistics and multiple regression analysis.

Results and conclusion: The findings revealed that smart contracts have a positive and statistically significant effect on the prevention of cyber fraud (r = 0.408, p < 0.001), while cryptographic security exerts a strong and significant influence on the prevention of money laundering (r = 0.433, p < 0.001). The study concluded that these FinTech solutions are effective tools for enhancing fraud prevention and improving the security architecture of Nigerian banks.

Implication of findings: The study implies that deposit money banks should prioritize investment in FinTech innovations, while regulatory authorities should establish supportive frameworks to facilitate their adoption, thereby strengthening financial security and restoring customer confidence in the banking system.

References

Adeyemo, T., & Obafemi, K. (2024). Technological innovation and fraud prevention in Nigerian deposit money banks. Journal of Financial Innovation and Risk Management.

Ahmed, S., Usman, H., & Kadai, M. (2025). Security of blockchain-based smart contracts in financial systems. FUDMA Journal of Sciences.

Ajayi, O. A., Bello, M. K., & Ibrahim, T. (2025). Cryptographic security and cyber threat mitigation in banking systems. International Journal of Digital Finance.

Akinola, R. O. (2024). Internal control systems and fraud prevention in Nigerian banking sector. African Journal of Accounting and Finance.

Akpootu, D., & Yusuf, H. (2025). Forensic accounting techniques and fraud control in financial institutions. FUDMA Journal of Accounting and Finance Research.

Arner, D. W., Barberis, J., & Buckley, R. P. (2020). FinTech, RegTech, and the reconceptualization of financial regulation. Journal of Financial Regulation and Technology.

Ayodele, S. O., Oye, B. A., Alimi, T. O., & Obitolu, O. (2025). Blockchain-based smart contracts and financial transparency in digital transactions. International Journal of Emerging Financial Technologies.

Bell, E., Bryman, A., & Harley, B. (2022). Business research methods (6th ed.). Oxford University Press.

Boehme, R., Christin, N., Edelman, B., & Moore, T. (2020). Bitcoin: Economics, technology, and governance. Journal of Economic Perspectives.

Central Bank of Nigeria. (2022). Annual report on fraud and forgery cases in Nigerian banks. https://www.cbn.gov.ng

Cucari, N., Esposito De Falco, S., & Orlando, B. (2022). Blockchain adoption and financial innovation in banking systems. International Journal of Bank Marketing.

Fatokun, B. O., Sikiru, S. A., Balogun, A. A., & Okorie, U. (2025). Machine learning techniques in fraud detection in Nigeria’s financial system. FUDMA Journal of Sciences.

Financial Action Task Force. (2021). Money laundering and terrorist financing risks from new technologies. https://www.fatf-gafi.org

Jensen, M. C., & Meckling, W. H. (1976). Theory of the firm: Managerial behavior, agency costs and ownership structure. Journal of Financial Economics, 3(4), 305–360.

Khera, P., Ng, S., & Wang, Z. (2022). Smart contracts and blockchain applications in financial systems. Journal of Digital Banking.

Kocianski, A. (2018). Blockchain in banking: Opportunities and challenges. Financial Innovation Review.

Kokogho, M., Efe, E., & Okpara, C. (2025). Blockchain technology and real-time auditing in FinTech environments. Journal of Financial Technology Studies.

Ministry of Communications and Digital Economy. (2023). National blockchain policy for Nigeria. Federal Government of Nigeria.

National Blockchain Policy for Nigeria. (2023). Federal Ministry of Communications and Digital Economy. Abuja, Nigeria.

National Institute of Standards and Technology. (2018). Framework for improving critical infrastructure cybersecurity. https://www.nist.gov

Obumneme, C., Eze, J., & Nwankwo, I. (2025). Corporate governance and fraud likelihood in Nigerian deposit money banks. FUDMA Journal of Management Sciences.

Orumwense, A., Ibrahim, T., & Bello, S. (2026). Artificial intelligence and audit quality in Nigerian financial institutions. FUDMA Journal of Sciences.

Sanusi, M., Abdullahi, Y., & Garba, A. (2026). Hybrid machine learning approaches for fraud detection in Nigerian banks. FUDMA Journal of Sciences.

Saunders, M., Lewis, P., & Thornhill, A. (2019). Research methods for business students (8th ed.). Pearson.

Sheikh, A., Bello, M., & Usman, K. (2025). Blockchain adoption and financial transparency: A systematic review. International Journal of Banking and Finance Research.

Shen, W., & Hou, J. (2021). Smart contracts and blockchain security applications. Journal of Financial Technology and Systems.

Smith, J. (2024). FinTech innovation and fraud risk reduction in financial institutions. International Journal of Financial Technology Studies.

Smith, J., & Johnson, L. (2023). Cryptographic systems and financial crime prevention. Cybersecurity and Finance Journal.

Tavakol, M., & Dennick, R. (2020). Making sense of Cronbach’s alpha. International Journal of Medical Education, 11, 53–55. https://doi.org/10.5116/ijme.5dfb.8dfd

Wang, H., Li, X., & Zhang, Y. (2021). Blockchain-based fraud prevention systems in financial services. International Journal of Information Management.

Yamane, T. (1967). Statistics: An introductory analysis (2nd ed.). Harper & Row.

Zheng, Z., Xie, S., Dai, H., Chen, X., & Wang, H. (2020). Blockchain challenges and opportunities: A survey. International Journal of Web and Grid Services.

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Published

31-03-2026

How to Cite

Adedipe, O. A. (2026). Impact of smart contracts and cryptographic security on fraud prevention in Nigerian deposit money bank. FUDMA Journal of Accounting and Finance Research [FUJAFR], 4(1), 250-263. https://doi.org/10.33003/fujafr-2026.v4i1.328.250-263

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