E Electronic wallets that provide convenience for electronic transactions can also occur security problems such as balance breaches, hacking of information data and illegal access. The problems in this thesis are what are the differences and similarities in the regulation of the security system for the use of electronic wallets in Indonesia and Singapore? and how is the supervision of the regulation of the security system for the use of electronic wallets in Indonesia and Singapore? The research method used is normative research in the form of descriptive legal comparisons using secondary data and primary data as supporting data for secondary data which is analyzed qualitatively and deductively drawn conclusions. Based on the results of the research, there are similarities and differences in the regulation of the security system for using electronic wallets.namely similarities in the form of licensing, conducting audits and protecting personal data while differences in the form of risk management, appointment of auditors, security standards, consumer protection, anti-money laundering and prevention of terrorism financing, and sanctions where Indonesia regulates in general while Singapore regulates more specifically in several security aspects. Supervision of the security system for the use of electronic wallets in Indonesia is carried out by Bank Indonesia on data/information and cyber security while in Singapore it is carried out by the Monetary Authority of Singapore on data/information and cyber security and on electronic wallet interoperability. Indonesia can implement more specific regulations on the unregulated aspects of electronic wallet security and expand the scope of supervision to electronic wallet interoperability.