The repercussions of the 2008 financial crisis, growing regulation, and the digital revolution are just a few of the reasons that have caused major changes in the banking and financial sectors in recent years. The fintech phenomenon has emerged as a result of this change, completely altering the way financial services are provided and used. The development of E-wallet security is a key component of this change. The goal of this thorough review is to investigate how E-wallet security has developed, looking at the difficulties, innovations, and potential directions in online transaction security. The article gives a general review of fintech, e-wallets, and electronic payment systems while highlighting the significance of security precautions in safeguarding private financial data. The survey also identifies the risks—such as device, network, platform, and service risks—that come with digital payments. In order to guarantee the security of digital payment systems, it also covers the importance of strong security measures, encryption, data protection, and user awareness. Recommendations for strengthening online payment security and guarding against unwanted access to personal accounts are included in the survey's conclusion.