This study aims to analyze the legal regulations related to the practice of Black Campaign products through social media according to Indonesian law and examine the forms of legal protection that can be provided to business actors who are harmed. The type of research used is normative legal research, with the approach method, namely the statutory approach, conceptual approach, and comparative approach. The results of the study show that the regulation regarding Black Campaign has not been specifically regulated in one statutory regulation, but the elements of the act are spread in various provisions, such as Law No. 5 of 1999 concerning the prohibition of monopolistic practices and unfair business competition, Law No. 1 of 2024 concerning the Second Amendment to Law No. 11 of 2008 concerning Information and Electronic Transactions, Law No. 8 of 1999 concerning Consumer Protection, Law No. 1 of 2023 concerning the Criminal Code, BPOM Regulation No. 32 of 2021 concerning supervision of cosmetic advertising and the Civil Code. Legal protection for business actors affected by black campaigns on social media is provided preventively through regulations in various laws and regulations, through outreach, and through oversight by the government and social media platforms through reporting and content removal mechanisms. Meanwhile, repressive protection can be pursued through administrative, civil, and criminal channels. These channels can be used to stop the spread of content, recover losses, and impose sanctions on perpetrators. However, in practice, this protection has not been effective due to weak oversight, obstacles to proof, and slow legal processes.