Introducing OpenZeppelin Contracts v5.1

Fundamentals of Gas Tokens

Gas tokens should be minted at a low gas price, and then burnt at a high gas price, thereby saving...

Security Insights

Introducing Defender Sentinels

Today we are announcing the release of a new app, called Sentinels, to help prevent ongoing attacks...

Products

OpenZeppelin Defender – March 2021 Update

We are excited to bring you many new Defender features this month that add powerful functionality...

Products

Workshop Recap: Cheap contract deployment through Clones

Clones (minimal proxies) as described in ERC1167, are very small, and cheap to deploy,...

Products

BarnBridge Smart Yield Bonds Audit

The BarnBridge team asked us to review and audit their Smart Yield Bond smart contracts. We looked...

Security Audits

Workshop Recap: Gasless MetaTransactions with OpenZeppelin Defender

Gasless MetaTransactions with OpenZeppelin Defender. The workshop covers the following: Intro to...

Products

An Introduction to Decentralized DevSecOps

As we build a community of decentralized services for the open economy, we could easily repeat...

Security Insights

Compound Governor Bravo Audit

The Compound team engaged us to audit a new governance mechanism called Governor Bravo.

Security Audits Solidity Lending

Fei Protocol Audit

Fei Protocol is the first protocol creating a stablecoin using a new stability mechanism called...

Security Audits

Celo Contracts Audit

The cLabs team working on the Celo platform asked us to review and audit the smart contracts for...

Security Audits

OpenZeppelin Contracts 3.4

OpenZeppelin Contracts 3.4 includes an ERC777 security fix for potential reentrancy issues in...

Products

UMA Audit – Phase 4

In this audit we reviewed some upgrades to the system, including a new financial contract template...

Security Audits Solidity oracle