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Espresso – Batch Authenticator Contract

Espresso Systems requested that we perform a security audit of its Batch Authenticator Contract, which is written in Solidity. Our final audit report was completed on August 13, 2026. To read the full report, including our findings, click here: Report

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Espresso – Derivation Pipeline Changes

Espresso Systems requested that Least Authority perform a security audit of its derivation pipeline changes for the OP Stack (Go and Rust). Our final audit report was completed on August 11, 2026. To read the full report, including our findings, click here: Report

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