Introducing OpenZeppelin Contracts v5.1

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

EIP-4337 – Ethereum Account Abstraction Audit

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

Security Audits Solidity EIP

Compound Comprehensive Protocol Audit

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

Security Audits Solidity Lending Governance Zero-Day Vuln

Compound TUSD Integration Issue Retrospective

During a comprehensive audit of the Compound Finance protocol, OpenZeppelin reviewed a...

Announcements Solidity Lending

Celo Contracts Audit – Release 6

In another round of auditing, the cLabs team asked OpenZeppelin to review and audit recent changes...

Security Audits Solidity