Doubling Down on Open Source Tools and Phasing Out Defender

OpenZeppelin is doubling down on open source development tools by sunsetting Defender and releasing production-ready open source Relayers and Monitor. Discover new features, and our expanded open ...

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

Security Audits Solidity Lending

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

Security Audits Solidity Governance

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

Security Audits Solidity Payments

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

Security Audits Solidity Token

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

Security Audits Solidity Token

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

Security Audits Solidity Token

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

Security Audits

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

Security Audits Solidity EIP

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

Security Insights Zero-Day Vuln

Transaction of A$DC token worth A$30 million secured by OpenZeppelin audit and technology.

Security Insights Financial Institution

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

Security Audits Solidity Lending Governance Zero-Day Vuln

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

Announcements Solidity Lending