With dYdX, you remain in full control of your funds at all times. There are no central intermediaries which hold your private keys. Your funds are secured by smart contracts at all times when they are on dYdX.
We take the security of our smart contracts extremely seriously. We’ve conducted rigorous internal testing and contracted top security firms such as Zeppelin Solutions (link) and Bramah Systems (link) to perform thorough audits of our systems. Our contracts and security audits are open-source, and verifiable by anyone.
Our track record speaks for itself: dYdX is the only major DeFi lending protocol that has yet to receive a bug report of user funds being at-risk.