The merge-ready Lido protocol upgrade has been implemented recently. While it has been extensively tested by Lido dev team & received the audit from MixBytes team prior to the deployment, the dev team continued looking for ways to get more eyes to review the codebase. Ensuring the protocol smart contracts have been audited by professionals with diverse perspectives allows to notice wide range of potential issues and safely fix them.
Lido dev team has contacted ChainSecurity audit firm and got the slot for the merge-ready protocol version. The audit scope covers the whole Lido protocol with the recent features and tweaks.
ChainSecurity is the established audit firm with wide experience with DeFi protocols in the Ethereum ecosystem. Among other projects, the team has been working with Compound, Maker & Kyber previously.
The quote for the scope is CHF 126,920 ($127,604 at the time of writing). We propose to use LEGO for funding the audit, but the grant of that size requires DAO approval.