Introducing OpenZeppelin Contracts v5.1

Freeverse Crypto Payments Audit

The OpenZeppelin security services team audited the crypto-payments project of the Freeverse team....

Security Audits Solidity Payments

Across Token and Token Distributor Audit

The UMA team asked us to review and audit their Across Token and Token Distributor repository. The...

Security Audits Solidity Token

UMA Optimistic Governor Audit

The UMA team asked us to review and audit their Optimistic Governor contract. This aims to allow...

Security Audits Solidity Governance oracle

Compound III Audit

As Compound's security partner we completed a comprehensive protocol audit. We looked at the code...

Security Audits Solidity Lending

Origin Governance Audit

The OpenZeppelin team audited a governance system for OriginProtocol. The contracts allow users to...

Security Audits Solidity Governance

Freeverse Payments Contract Audit

The Freeverse team asked us to review and audit their NFT marketplace. We looked at the code and...

Security Audits Solidity Payments

Celo Contracts Audit

The Celo team asked us to review and audit Release 7 smart contracts. We looked at the code and now...

Security Audits Solidity Token

Celo Contracts Audit

The Celo team asked us to review and audit Release 7 smart contracts. We looked at the code and now...

Security Audits Solidity Token

Forta Protocol Audit

The Forta team asked us to review and audit their Forta Token smart contracts. We looked at the...

Security Audits Solidity Token

UMA Across V2 Audit 2022

The UMA Across system provides a mechanism that, in effect, allows users to send funds between all...

Security Audits

EIP-4337 – Ethereum Account Abstraction Audit

The Ethereum Foundation asked us to review the EIP-4337 specification and a reference...

Security Audits Solidity EIP

$15B Rugpull Vuln. in Convex Finance protocol Uncovered and Resolved

Anonymous team at Convex Finance collaborates with OpenZeppelin to secure the DeFi protocol and...

Security Insights Zero-Day Vuln