This thesis examines the legal protection of online rotating savings group (arisan online) members who experience losses due to “zonker” incidents from a legal perspective. The study uses a literature review and analyzes relevant aspects of civil law, criminal law, consumer protection law, and the Electronic Information and Transactions Law. The proposed solutions address legal protection for members and mechanisms for resolving disputes arising from such cases. Through these concrete measures, it is expected that the law can provide protection for affected members and encourage the public to exercise greater caution when using social media and engaging in online transactions.