Summary
The most critical subjects covered in our audit are asset solvency, functional correctness, and access control. The reported issue Incorrect USDT Address has been resolved, hence security regarding all the aforementioned subjects is high.
The general subjects covered are gas optimizations and specification. Security regarding both subjects is high.
In summary, we find that the codebase provides an good level of security.
It is important to note that security audits are time-boxed and cannot uncover all vulnerabilities. They complement but don't replace other vital measures to secure a project.
About Decentralized USD PSM Smart Contracts
Decentralized USD implements a Peg Stability module (PSM) for USDD V2. The PSM is a system designed to help maintain the peg of USDD by enabling the direct exchange of USDD for supported stablecoins (and vice versa) at a fixed exchange rate of 1:1.