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This study investigates the effect of artificial intelligence on cybercrime rate in the Nigerian banking sector. Specifically, the study examines the influence of user authentication, transaction monitoring, and secure communication channels on cybercrime rate in the Nigerian banking sector. The study is anchored on the Technology Acceptance Model (TAM3) and the Fraud Diamond Theory. A survey research design was adopted, and data were collected through structured questionnaires administered to staff of selected deposit money banks in Nigeria. The study employed descriptive statistics and multiple regression analysis with the aid of the Statistical Package for Social Sciences (SPSS) to analyze the data. The empirical findings revealed that user authentication, transaction monitoring, and secure communication channels have significant negative effects on cybercrime rate in the Nigerian banking sector. The study concludes that artificial intelligence plays a crucial role in strengthening cyber security frameworks and enhancing fraud prevention mechanisms within the Nigerian banking sector. Based on the findings, the study recommends that deposit money banks should increase investment in artificial intelligence technologies, strengthen authentication mechanisms, and adopt advanced transaction monitoring systems to effectively mitigate cybercrime threats and protect financial transactions.

Artificial Intelligence, Cybercrime Rate, Nigerian Banking Sector, Fraud Detection, User Authentication, Transaction Monitoring, Secure Communication. Introduction The increasing adoption of digital technologies has transformed t, leading to significant improvements in financial service delivery through internet banking, mobile banking, electronic payments, and other digital platforms. While these innovations have enhanced operational efficiency and custom, they have also increased the vulnerability of financial institutions to cyber threats. Cyber fraud, phishing attacks, identity theft, unauthorized transactions, and other forms of cybercrime have emerged as major challenges confronting banks globally (Humayun e, 2020),