With the increasing prevalence of ATM fraud and the growing need for more secure financial transactions, One-Time Password (OTP) authentication has emerged as a key solution to combat fraud. However, while OTP authentication provides significant security improvements over traditional methods, there remains room for further innovations. This paper explores the future of OTP-based authentication in ATM systems, focusing on the integration of emerging technologies such as biometrics, artificial intelligence (AI), blockchain, and multi-factor authentication (MFA). These innovations promise to enhance security, streamline user experiences, and address the challenges of OTP vulnerabilities.
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