JOS LUWIS GINTING (NPM: 01051190192) THE LEGAL PROTECTION OF FOREIGN EXCHANGE (FOREX) INVESTORS' TRANSACTIONS AGAINST THE RUPIAH IN COMMERCIAL BANKS This research discusses legal protection for investors in Foreign Exchange (Forex) transactions against the Rupiah in commercial banks. Forex is an international currency trading transaction that allows investors to buy and sell currencies with the aim of profiting from the exchange rate difference. However, Forex transactions also have a high risk, especially when the traded currency experiences significant fluctuations. In this research, the author analyzes the laws and regulations governing Forex transactions and legal protection for investors in Forex transactions against the Rupiah in commercial banks. The author also analyzes the role and responsibility of commercial banks in providing legal protection for investors in Forex transactions. The research findings show that commercial banks have an important role in providing legal protection for investors, such as providing clear and accurate information about the risks associated with Forex transactions, as well as ensuring that investors have access to dispute resolution mechanisms.