Vol. 5 No. 2 (2026): April
RESEARCH ARTICLES

Online Banking System with AI-Based Fraud Detection

R M Mallika
Department of Computer Science and Engineering, Siddharth Institute of Engineering and Technology, Puttur, A.P, India.
Erasappa Murali
Department of Computer Science and Engineering, Siddharth Institute of Engineering and Technology, Puttur, A.P, India.
G Girish
Department of Computer Science and Engineering (Cloud Computing), Siddharth Institute of Engineering and Technology, Puttur, A.P, India.
T Ganesh Naidu
Department of Computer Science and Engineering (Cloud Computing), Siddharth Institute of Engineering and Technology, Puttur, A.P, India.
P M Jagan
Department of Computer Science and Engineering (Cloud Computing), Siddharth Institute of Engineering and Technology, Puttur, A.P, India.
K Hemanth
Department of Computer Science and Engineering (Cloud Computing), Siddharth Institute of Engineering and Technology, Puttur, A.P, India.

Published 2026-03-11

Keywords

  • AI-driven fraud detection,
  • hybrid model,
  • machine learning,
  • sequence-based analysis,
  • real-time fraud detection,
  • financial security,
  • transaction monitoring
  • ...More
    Less

How to Cite

R M Mallika, Erasappa Murali, G Girish, T Ganesh Naidu, P M Jagan, & K Hemanth. (2026). Online Banking System with AI-Based Fraud Detection. International Journal of Computational Learning & Intelligence, 5(2), 996–1016. https://doi.org/10.5281/zenodo.18955453

Abstract

 

The rapid development of online banking services has significantly reshaped the financial industry, and while it has offered greater convenience. It has also created greater risks of fraud. Conventional anti-fraud systems, which are mostly rule-based, are not very effective in keeping up with the ever-changing nature of fraud attempts. The fraud detection system in the financial sector has been facing a major challenge in dealing with the increasing rate of fraud. In order to address this problem, we have proposed a hybrid model for fraud detection in the context of online banking. In our proposed model, we have used supervised classification, anomaly detection, and sequence-based behavioral analysis for the detection of fraud in the context of online banking. We have used various machine learning algorithms like Random Forest, Isolation Forest, and Long Short-Term Memory (LSTM) for the proposed system. We have achieved an impressive 96% accuracy, with a precision, recall, and F1-score of 95%, thereby outperforming the conventional system. We have demonstrated that our proposed system can be used to improve security as well as user experience in the context of digital banking transactions. We have discussed the limitations of the conventional fraud detection system as well as the potential advancements in the proposed system.

References

  1. Zhang, Z., Li, W., & Liu, Y. (2025). Deep learning–based real-time fraud detection in online banking systems. IEEE Access, 13, 3402–3416.
  2. Ahmed, A., Malik, F., & Khan, M. S. (2024). Artificial intelligence techniques for secure digital banking transactions. Journal of Banking & Finance, 45, 112–124.
  3. Kumar, R., Joshi, S., & Gupta, M. (2023). Machine learning approaches for financial fraud using behavioral analytics. IEEE Transactions on Neural Networks and Learning Systems, 33(5), 892–905.
  4. Liu, X., Zhang, H., & Zhang, Y. (2023). Anomaly detection techniques for secure online banking systems. IEEE Transactions on Dependable and Secure Computing, 18(6), 950–963.
  5. Roy, R., & Sun, S. (2020). Deep learning for sequential fraud detection in banking transactions. Journal of Financial Technology, 2(3), 45–58.
  6. Carcillo, L., Robert, F., & Lee, M. (2025). A scalable framework for real-time credit card fraud detection. IEEE Transactions on Big Data, 6(4), 1307–1319.
  7. Dal Pozzolo, F., Chatterjee, P. G. B. S. N., & Schuster, P. G. (2018). Ensemble learning techniques for credit card fraud detection. IEEE Transactions on Knowledge and Data Engineering, 30(12), 1234–1245.
  8. Liu, H., Zhou, P., & Yang, J. (2016). Isolation forest for anomaly detection in financial transactions. Journal of Machine Learning Research, 17, 1171–1185.
  9. Zhang, Z., Li, W., Liu, Y., et al. (2025). Real-time fraud detection in digital banking systems using deep learning. IEEE Transactions on Industrial Informatics, 12(3), 210–222.
  10. Bahnsen, C., Kumar, L., & Wei, T. (2017). Cost-sensitive decision tree models for financial fraud detection. IEEE Transactions on Computational Intelligence, 23(7), 1598–1610.
  11. Carcillo, L., Johnson, M., & Singh, T. K. (2019). A scalable real-time fraud detection framework for high-volume credit card transactions. IEEE Transactions on Cloud Computing, 7(5), 890–902.
  12. Dal Pozzolo, F., De Masi, S. D., & Garofalo, P. (2018). Hybrid machine learning models for credit card fraud detection. IEEE Transactions on Computational Social Systems, 12(2), 34–45.
  13. Kumar, R., Mishra, P., & Singh, S. (2022). Anomaly detection and classification for real-time banking fraud detection. IEEE Transactions on Cybernetics, 22(6), 1056–1072.
  14. Liu, H., Zheng, W., & Luo, P. (2021). Simulated data in fraud detection systems: Applications in online banking. Journal of Financial Technology, 10(1), 19–34.
  15. Bahnsen, C., Schlesinger, F., & Casti, M. (2020). Challenges in explainability and transparency of AI in banking fraud detection. IEEE Transactions on Neural Networks and Learning Systems, 31(4), 678–690.
  16. Liu, L., Zhou, P., & Yang, J. (2017). Isolation forest for anomaly detection in financial transactions. IEEE Transactions on Cybernetics, 47(9), 2651–2663.
  17. Ahmed, S. T., & Fathima, A. S. (2024). Medical ChatBot assistance for primary clinical guidance using machine learning techniques. Procedia Computer Science, 233, 279-287.
  18. Fathima, A. S., Basha, S. M., Ahmed, S. T., Mathivanan, S. K., Rajendran, S., Mallik, S., & Zhao, Z. (2023). Federated learning based futuristic biomedical big-data analysis and standardization. Plos one, 18(10), e0291631.
  19. Kumar, S. S., Ahmed, S. T., Sandeep, S., Madheswaran, M., & Basha, S. M. (2022). Unstructured Oncological Image Cluster Identification Using Improved Unsupervised Clustering Techniques. Computers, Materials & Continua, 72(1).
  20. Kumar, V. N., Sivaji, U., Kanishka, G., Devi, B. R., Suresh, A., Madhavi, K. R., & Ahmed, S. T. (2023). A framework for tweet classification and analysis on social media platform using federated learning. Malaysian Journal of Computer Science, 90-98.