Introducing OpenZeppelin Contracts v5.1

PROPS Rewards Engine Contracts Audit

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

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

Build your app with the Gas Station Network

The Gas Station Network, or GSN for short, is a decentralized solution for solving user onboarding...

Announcements Products

Bypassing Smart Contract Timelocks

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

Security Audits

GSN: The Ultimate Ethereum Onboarding Solution

Gas Station Network is an open-source service that allows developers to create unique decentralized...

Announcements Security Insights Products

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

Say Hi to OpenZeppelin, the Company

Today we are announcing our new company name and brand structure: OpenZeppelin. This change allows...

Announcements

Launching the Zeppelin community forum

The Zeppelin community connects experts, beginners, and enthusiasts of smart contract and...

Announcements

Getting the most out of CREATE2

In this post, we’ll go in depth into the CREATE2 opcode and its uses in counterfactual...

Security Insights

Announcing the Wyre + Zeppelin TPL integration

Wyre and Zeppelin share an ambition to lower barriers to entry for blockchain entrepreneurs, so...

Announcements

Sign it like you mean it: creating and verifying Ethereum signatures

Recently, Zeppelin announced that it had joined the Gas Station Network Alliance, a new group...

Security Insights Products