This study aims to investigate the accountability and evidence of insurance companies regarding suspicious financial transactions. The increasing complexity of financial transactions in the insurance sector raises concerns about the potential for fraud and money laundering. This research employs a qualitative approach. The findings reveal that while many insurance companies have implemented robust compliance measures, there are still gaps in their ability to detect and report suspicious activities. This study highlights the importance of enhancing transparency and accountability in the insurance industry to foster trust and protect stakeholders from financial misconduct. This research examines legal phenomena through systematic and scientific analysis to address specific legal issues. It focuses on normative legal research, which analyzes written regulations using theory, philosophy, and binding force. The study utilizes secondary data from primary, secondary, and tertiary legal materials to explore the protection of personal data in OSS licensing services. The research employs a deductive method to draw conclusions from general legal principles to specific issues. This study explores the proof of suspicious financial transactions related to money laundering via fictitious insurance claims, emphasizing the need for thorough analysis of transaction data and valid evidence. Trends in suspicious transaction reports indicate potential illegal activities that require strict oversight.