In an effort to ensure the highest standards of security and reliability within the Stellar ecosystem, StellarBroker commissioned Runtime Verification Inc. to conduct a comprehensive security audit of its smart contract system. This audit, part of the Stellar Development Foundation’s Audit Bank program, took place from March 31 to April 18, 2025, and aimed to rigorously evaluate the security measures, correctness, and overall implementation of StellarBroker's smart contracts. StellarBroker, a pivotal component of the Soroban-based DeFi ecosystem, is designed to facilitate complex swaps and optimize trading strategies, thereby maximizing user profits within the Stellar network. Given its critical function and the anticipated high volume of user transactions, the integrity and security of its smart contracts are of utmost importance. The audit focused on identifying potential vulnerabilities, assessing the system's ability to handle various operational scenarios, and providing actionable recommendations to bolster StellarBroker's security framework. Key findings highlighted areas for improvement, including issues related to fee handling and the potential for fee drainage through swaps. Additionally, the audit offered best practices recommendations to guide future development and ensure the robustness of the platform. This proactive approach to security, underscored by StellarBroker's commitment to continuous improvement and adherence to industry best practices, reinforces its position as a trusted and secure platform within the Stellar ecosystem.