The article explores the security aspects of mobile payment systems
(MPS) in the context of urban Internet of Things (IoT) technology. MPS
leverages mobile devices and the internet to facilitate convenient
financial transactions, catering to a user base of over 960 million
globally. Nevertheless, the ease of mobile payments is accompanied by
security apprehensions, including device susceptibilities, theft risks,
and potential cyber assaults. This paper examines the technical
environment of MPS, focusing on their development over time, the current
utilization of technologies like NFC, and the security measures that
regulate these systems. The paper also explores alternative payment
protocols and current security measures, providing a valuable
understanding of the correlation between mobile payments and online
security. This investigation aims to enhance the safety and
understanding of mobile payment systems and provide guidance for future
enhancements in security measures to create a more secure digital
transaction environment.