Introducing OpenZeppelin Contracts v5.1

Flash-Mintable Asset-Backed Tokens

A flash-mintable asset-backed token is an ERC20-compliant token that is: Asset-backed and...

Security Insights

Argent Audit Technical Report

A high-severity vulnerability in the Argent wallet would have allowed attackers to take over...

Security Insights Zero-Day Vuln

MCDEX Mai Protocol Audit

Monte Carlo Decentralized Exchange is a decentralized derivatives exchange. MAI Protocol V2 is a...

Security Audits

Compound COMP Distribution System Audit

The Compound team engaged us to audit their new COMP distribution system, which will be added to...

Security Audits Solidity Lending

UMA Audit – Phase 2

In this audit we reviewed a particular financial contract template that can be used within the...

Security Audits Solidity oracle

DeFi Reflections on Hackers and Viruses

In the wake of the current pandemic and other recent events affecting DeFi, we at OpenZeppelin have...

Security Insights

UMA Audit Phase 1

Uma is a platform that allows users to enter trust-minimized financial contracts on the Ethereum...

Security Audits oracle

Compound: Tether Integration Audit

The Compound team engaged us to finish auditing their integration of Tether's USDT token into the...

Security Audits Solidity Lending

PoolTogether – Pods Audit

Pods is a new feature that will allow users to pool their lottery tickets and share the rewards.

Security Audits

dYdX Perpetual Audit

Perpetual is a new perpetual contract market by dYdX that enables users to use native...

Security Audits

What is DeFi? An Introduction to Decentralized Finance

Learn about lending, collateral, loan to collateral ratio, protocol tokens, price oracles,...

Security Insights

Welcome Jonathan Alexander, OpenZeppelin’s new CTO

We are excited to announce that Jonathan Alexander is joining OpenZeppelin as CTO. OpenZeppelin is...

Announcements