With the recent advancement in information technology, all activities have been said to be digitalized because the world is heading to a smart globe. This development led to the innovation of electronic payment (e-payment) systems in public transport. Thus, this study is aimed at assessing the effect of the e-payment system on the security of public transport users. To achieve this aim, the study reviewed the e-payment systems operational in both developing and developed countries, assessed the e-payment system in Lagos public transport, and analyzed how the e[1]payment system affects the security of transport users. Primary data was collected through the administration of 300 copies of well-structured questionnaire to BRT passengers in Lagos State using the convenience sampling technique. The data was analyzed via descriptive and inferential statistical tools. Most of the respondents believe that the cowry card provides robust protection against fraudulent or cyber-attacks, and that their details and vital information can be swiftly transferred to a new card in the event of loss or theft. The study recommends the integration of cowry card adoption across several modes of transport and increased publicity on the features and security of using cowry cards for transport fare payments.