USDD completes fifth security audit report, ChainSecurity confirms high-level security

Recently, the well-known Web3 security audit firm ChainSecurity released a security audit report on the decentralized stablecoin USDD. This marks the fifth security audit conducted since its comprehensive upgrade to USDD 2.0 in January 2025. According to the report, USDD demonstrates a high level of security both in token integration and application mechanisms. The release of the audit report once again confirms USDD's leading advantages in smart contract security and asset solvency. As a stablecoin project that has attracted much attention in the DeFi sector, USDD has always prioritized security. The completion of five audits by top-tier institutions proves its strong capability in ensuring the safety of user assets.

USDD adopts an over-collateralized decentralized architecture and introduces a well-validated collateralized debt position model, allowing users to mint the decentralized stablecoin using multiple types of collateral. Recently, its deployment has expanded to Ethereum and BNB Chain, not only enhancing its cross-chain usability and liquidity but also providing more convenient access channels for a broader user base.

This fifth audit was conducted by ChainSecurity, focusing on USDD's on-chain deployment on Ethereum and BNB Chain. The report shows that USDD's codebase demonstrates a high level of security. In related areas such as token integration, emergency mechanisms, and deficit auctions, as well as general areas like event handling and documentation, all aspects exhibit high security, further improving the reliability of its multi-chain layout.

Previously, USDD had completed four audits by leading industry institutions ChainSecurity and CertiK, all of which received high praise.

In previous audit reports on USDD smart contracts, ChainSecurity pointed out that its asset solvency is highly secure, with significant improvements in functional correctness and access control. The overall codebase provides a satisfactory level of security, with only some informational issues such as event handling and precision calculation that could be further optimized. The team has resolved key issues and accepted the risk of governance delay, emphasizing the need for continuous monitoring to ensure the proper functioning of oracles and governance.

Subsequently, in another audit of USDD, ChainSecurity once again confirmed that the codebase's security level is satisfactory, and after optimization of functionality and access control, there are no major risks. The report emphasized that ongoing optimization and enhancement will further strengthen security.

Additionally, in the audit of the exchange smart contract, ChainSecurity highlighted that the contract supports a one-way 1:1 exchange from the old TRC-20 USDD to the new USDD. The audit covered asset solvency, functional correctness, and access control, all of which were found to be highly secure with no vulnerabilities detected. The report also considered the codebase to demonstrate a good level of security.

In September of this year, the industry-renowned security firm CertiK updated its audit of the Ethereum version of USDD. The report emphasized that the overall functionality of the code is complete, does not affect platform security, and demonstrates USDD's high security standards in its Ethereum deployment.

These audit results consistently indicate that USDD performs excellently in key areas such as asset security, functional accuracy, and permission management, with no major vulnerabilities found that could lead to loss of funds or system crashes. As authoritative institutions in the blockchain security field, ChainSecurity and CertiK's rigorous evaluations have further strengthened the community's confidence in USDD.

Currently, USDD has been launched on TRON, Ethereum, and BNB Chain, with total circulation steadily increasing. On October 6, USDD also launched its yield-bearing token sUSDD, providing users with stable and diversified yield options. Within three weeks, TVL exceeded $21 million. USDD's rapid multi-chain expansion reflects its commitment to decentralized finance. In the future, USDD will continue to explore more on-chain opportunities, providing reliable stablecoin solutions for users worldwide.

For more details, please visit the USDD official website to view the complete audit report.