Combating corruption is a crucial priority for Indonesia, which strives to improve the quality of governance and institutional integrity. Whistleblowers play a vital role in uncovering corrupt practices, often serving as the initial source of information that reveals systemic and organized corruption. However, whistleblowers face significant risks, including intimidation and retaliatory actions. Effective legal protection is essential to shield them from these risks and encourage the public to report corruption. This study aims to review the effectiveness of legal protections for whistleblowers under Indonesian legislation and explore measures that can be enhanced to ensure their safety and well-being. Utilizing a literature review method, this research finds that although regulations exist to protect whistleblowers, their implementation remains inadequate. Obstacles such as lack of legal awareness, insufficient resources in law enforcement agencies, and a culture of fear of retaliation hinder optimal protection. Specific legal reforms, increased capacity of law enforcement agencies, and education and cultural changes that support whistleblowers are needed to improve the effectiveness of protection. Strengthening legal protections will better motivate whistleblowers to report corruption, supporting creating a more transparent and accountable government.