Online e-commerce is believed to be easier and more cost-effective than conventional business. But this does not also guarantee total security in conducting transactions. The losses to consumers from online shopping also vary, ranging from products that do not match the descriptions, low quality items, to fraud. This study aimed to research the legal protection for consumers against fraudulent acts from sellers. The approach used in this research is legal empirical. Magelang, Pekalongan, and Semarang were the selected research areas, using purposive non-random sampling. The primary data was obtained by interview, and a literature review was used for secondary data. The collected data was then analyzed using qualitative methods. Based on this study it can be concluded that the implementation of online transactions is based on mutual trust between the parties. Consumers are the weak party in this online sale and purchase agreement, often experiencing loss and dissatisfaction when receiving the goods or services promised, with incorrect delivery times, inappropriate items, and even fraud. The existing law is not sufficient to provide optimal legal protection to consumers.