OpenZeppelin conducts security audit of Across Protocol contracts

OpenZeppelin Security conducted a diff audit of the Across Protocol contract repository, specifically examining changes within the SpokePoolPeriphery and Tron-related periphery files. The audit covered the transition between specific commits to ensure the security of the cross-chain bridge mechanism.

The SpokePoolPeriphery serves as an optional entry point for the SpokePool, allowing depositors to swap tokens immediately before depositing or to use off-chain signatures for third-party transaction submissions. The audit identified one issue, which has since been resolved.