Online banking is a research concept focusing on the delivery and use of financial services via digital platforms, primarily the internet. It represents a fundamental shift in how banking is conducted, moving from physical branches to remote electronic interactions. As a research domain, it investigates the technological infrastructure, security mechanisms, user adoption and behavior, service quality, regulatory challenges, and the broader economic and social impacts of digital financial transactions. Key characteristics include remote accessibility, real-time service availability, data security requirements, and the integration of information and communication technologies into financial operations. The significance of studying online banking stems from its central role in the modernization of financial systems, its influence on consumer behavior, and the challenges it poses for security, privacy, and regulation in a globalized digital economy.