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Past Events

Workshop Recap: Indexing Smart Contracts with OpenZeppelin Subgraphs & The Graph

Creating dense Subgraphs is one of the most important aspects of indexing on-chain information. In this workshop we…

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Workshop Recap: How PoolTogether Automates Operations Using OpenZeppelin Defender

PoolTogether is a lossless lottery built with smart contracts using Defender to automate the award cycle process and…

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Workshop Recap: Managing Maintenance Tasks on Chainlink Keepers Using OpenZeppelin Defender

Chainlink’s Keeper Network is a secure way to outsource contract operations to a decentralized network of professional…

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LATEST NEWS

Developers Can Now Register and Manage Chainlink Keeper Jobs with OpenZeppelin Defender

We are excited to announce integrated support for the Chainlink Keepers Open Beta directly within the OpenZeppelin Defender platform—the leading security operations suite for Ethereum and EVM-based…

Moonbeam Integrates with OpenZeppelin to Provide Best-in-Class Security Tools to Developers

Moonbeam, the Ethereum-compatible smart contract platform on Polkadot, announced an integration with OpenZeppelin, an open-source framework to build secure smart contracts. This integration…

FEI Post Mortem

On Sunday May 2nd, 2021, the Fei Labs team identified an economic vulnerability that affected the Fei Protocol, which would have allowed an attacker to drain funds from the ETH-FEI Uniswap pool. The…

OpenZeppelin Contracts 4.1

This new release introduces UUPS proxies as a cheaper alternative to Transparent proxies. Additionally, a new ERC20 extension allows easy creation of tokens with built-in flash minting, and a new…

Introducing Contracts Wizard: An Interactive Contract Generator

Contracts Wizard is an interface to interactively build a contract out of components from OpenZeppelin Contracts. Select the kind of contract that you want (current support for ERC20 and ERC721), set…

OpenZeppelin Contracts 4.0

Due to the new built-in overflow checks in Solidity 0.8, which mark the end of the `SafeMath` era, this release of OpenZeppelin Contracts is a new major version of the library.

Introducing Defender Sentinels – Smart Contract Monitoring & Emergency Response

Today we are announcing the release of a new app, called Sentinels, to help prevent ongoing attacks and exploits in the DeFi space. The app is part of the OpenZeppelin Defender platform, a security…

OpenZeppelin Defender – March 2021 Update

We are excited to bring you many new Defender features this month that add powerful functionality to your security operations - all fully included in your Defender account. We built Defender to…

OpenZeppelin Contracts 3.4

OpenZeppelin Contracts 3.4 includes an ERC777 security fix for potential reentrancy issues in custom ERC777 extension, virtual view functions, ERC20 permit in drafts, Beacon proxy, and a Minimal…

Introducing OpenZeppelin Defender

Ship faster with lower risk. Automate your Ethereum operations to deliver high-quality products faster with less risk to users.

LATEST NEWS

Developers Can Now Register and Manage Chainlink Keeper Jobs with OpenZeppelin Defender

We are excited to announce integrated support for the Chainlink Keepers Open Beta directly within the OpenZeppelin Defender platform—the leading security operations suite for Ethereum and EVM-based…

Moonbeam Integrates with OpenZeppelin to Provide Best-in-Class Security Tools to Developers

Moonbeam, the Ethereum-compatible smart contract platform on Polkadot, announced an integration with OpenZeppelin, an open-source framework to build secure smart contracts. This integration…

FEI Post Mortem

On Sunday May 2nd, 2021, the Fei Labs team identified an economic vulnerability that affected the Fei Protocol, which would have allowed an attacker to drain funds from the ETH-FEI Uniswap pool. The…

OpenZeppelin Contracts 4.1

This new release introduces UUPS proxies as a cheaper alternative to Transparent proxies. Additionally, a new ERC20 extension allows easy creation of tokens with built-in flash minting, and a new…

Introducing Contracts Wizard: An Interactive Contract Generator

Contracts Wizard is an interface to interactively build a contract out of components from OpenZeppelin Contracts. Select the kind of contract that you want (current support for ERC20 and ERC721), set…

OpenZeppelin Contracts 4.0

Due to the new built-in overflow checks in Solidity 0.8, which mark the end of the `SafeMath` era, this release of OpenZeppelin Contracts is a new major version of the library.

Introducing Defender Sentinels – Smart Contract Monitoring & Emergency Response

Today we are announcing the release of a new app, called Sentinels, to help prevent ongoing attacks and exploits in the DeFi space. The app is part of the OpenZeppelin Defender platform, a security…

OpenZeppelin Defender – March 2021 Update

We are excited to bring you many new Defender features this month that add powerful functionality to your security operations - all fully included in your Defender account. We built Defender to…

OpenZeppelin Contracts 3.4

OpenZeppelin Contracts 3.4 includes an ERC777 security fix for potential reentrancy issues in custom ERC777 extension, virtual view functions, ERC20 permit in drafts, Beacon proxy, and a Minimal…

Introducing OpenZeppelin Defender

Ship faster with lower risk. Automate your Ethereum operations to deliver high-quality products faster with less risk to users.

Our most recent security audit reports

Check out all of our audits >