Introducing OpenZeppelin Contracts v5.1

PROPS Token Contracts Audit

The YouNow team asked us to review and audit their PROPS Token contracts. We looked at the code and...

Security Audits Solidity Token

Compound Audit

The Compound team asked us to review and audit their platform's smart contracts. We examined their...

Security Audits Solidity Lending

Bypassing Smart Contract Timelocks

In this article, we look at a game theoretical attack against smart contract timelock systems that...

Security Audits

Exploiting Uniswap: from reentrancy to actual profit

Uniswap is a public, open-source protocol to exchange tokens in Ethereum. In Uniswap, there is a...

Security Audits

Technical Description of Critical Vulnerability in MakerDAO Governance

While working on an audit for the Coinbase team, we found a critical vulnerability in the DSChief...

Security Insights

MakerDAO Critical Vulnerability Notice

While working on an audit for the Coinbase team, we found a critical vulnerability in one of the...

Security Insights

Solo Margin Protocol Audit

The dYdX team asked us to review and audit their Solo project. We looked at the code and our...

Security Audits

Marmo Contracts Audit

The RCN team asked us to review and audit their Marmo contracts. We looked at the code and here are...

Security Audits

Centre Token Minting Contracts Audit

The Circle and Coinbase teams asked us to review and audit the minting contracts of the Centre...

Security Audits

Follow this quality checklist before an audit

At OpenZeppelin we help protect the core infrastructure of open and decentralized applications. I’m...

Security Insights

RNDR Token Transfer Audit

The OTOY team asked us to review and audit their RNDR Token contracts. We looked at the code and...

Security Audits Solidity Token

Solidity Compiler Audit

The Augur team and the Ethereum Foundation (through a joint grant) asked us to review and audit the...

Security Audits