Introducing OpenZeppelin Contracts v5.1

PoolTogether Audit

The PoolTogether team asked us to review and audit the system. We looked at the code and now...

Security Audits

Aave Protocol Audit

The Aave team asked us to review and audit a pre-production version of their protocol. We looked at...

Security Audits Solidity Lending

Eco Contracts Audit

The Eco team asked us to review and audit the contracts for their open payment network. We looked...

Security Audits Solidity Payments

ArroToken Audit

The Arro team asked us to audit their ERC20 ArroToken project. We look at the code and now we...

Security Audits

A Year of Research at OpenZeppelin

It's been a busy 2019 for our dearest Research team. These are the main highlights of the year!.

Security Insights

Deep dive into the Minimal Proxy contract

In this deep dive into low-level EVM code, you will learn how to code a Minimal Proxy (EIP 1167)...

Products

Review Summary of Bounties Network

We take a look at Bounties Network implementation of MetaTransactions and find two medium severity...

Security Insights

Compound Finance – Timelock Audit

The Compound team asked us to audit a patch of their smart contract code. We examined the code and...

Security Audits Solidity Lending

InstaDApp Audit

The InstaDApp team asked us to audit their proxy wallet and wallet registry contracts. We examined...

Security Audits

Libra’s Move IR Compiler Vulnerability

We describe a vulnerability in the Move IR compiler whereby inline comments can be disguised as...

Security Audits

OpenZeppelin Uncovers Vulnerability in Libra’s Move IR Compiler

We found a problem in Libra’s intermediate representation language compiler, the Move IR, that...

Security Audits

PROPS Rewards Engine Contracts Audit

The YouNow team asked us to review and audit their Rewards Engine contracts that distribute their...