Nothing found.

Latest stories

New Tools to Securely Manage Smart Contract Upgrades

We have partnered with Truffle, Nomic Labs (buidler) and Gnosis Safe to release two plugins and a new app to securely…

Read More

OpenZeppelin Upgrades Plugins for Buidler and Truffle

We are releasing two new packages to deploy and manage upgradeable contracts from Buidler and Truffle! With them, you…

Read More

OpenZeppelin Upgrades App for Gnosis Safe

We are rolling out a Gnosis Safe App for managing proxy-based smart contract upgrades! This allows you to transfer…

Read More

Our most popular audit reports

Nothing found.

SEE ALL >
More stories

Uma Audit – Phase 2

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

Celo Contracts Audit

The cLabs team working on the Celo platform asked us to review and audit the smart contracts for the protocol. We examined the code, and here we publish our findings.

DeFi Reflections on Hackers and Viruses

In the wake of the current pandemic and other recent events affecting DeFi, we at OpenZeppelin have taken the chance to review the current state of security and risk management in the blockchain…

Uma Audit – Phase 1

Uma is a platform that allows users to enter trust-minimized financial contracts on the Ethereum blockchain. One component of the system is a decentralized oracle, which was the subject of this…

Compound: Tether Integration Audit

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

PoolTogether – Pods Audit

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

dYdX Perpetual Audit

Perpetual is a new perpetual contract market by dYdX that enables users to use native Ethereum-based tokens as collateral to trade derivatives with non-Ethereum underlying assets.

What is DeFi? An Introduction to Decentralized Finance

What is DeFi? An Introduction to Decentralized Finance

Learn about lending, collateral, loan to collateral ratio, protocol tokens, price oracles, liquidation, risks and more!

OpenZeppelin

Welcome Jonathan Alexander, OpenZeppelin’s new CTO

We are excited to announce that Jonathan Alexander is joining OpenZeppelin as CTO. OpenZeppelin is a technology company whose mission is to protect the core infrastructure of an open, global economy.…

Backdooring Gnosis Safe Multisig wallets

Disclosure of a severe attack vector in the deployment of the popular Gnosis Safe Multisig wallet. Proof of concept included.

More stories

Uma Audit – Phase 2

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

Celo Contracts Audit

The cLabs team working on the Celo platform asked us to review and audit the smart contracts for the protocol. We examined the code, and here we publish our findings.

DeFi Reflections on Hackers and Viruses

In the wake of the current pandemic and other recent events affecting DeFi, we at OpenZeppelin have taken the chance to review the current state of security and risk management in the blockchain…

Uma Audit – Phase 1

Uma is a platform that allows users to enter trust-minimized financial contracts on the Ethereum blockchain. One component of the system is a decentralized oracle, which was the subject of this…

Compound: Tether Integration Audit

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

PoolTogether – Pods Audit

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

dYdX Perpetual Audit

Perpetual is a new perpetual contract market by dYdX that enables users to use native Ethereum-based tokens as collateral to trade derivatives with non-Ethereum underlying assets.

What is DeFi? An Introduction to Decentralized Finance

What is DeFi? An Introduction to Decentralized Finance

Learn about lending, collateral, loan to collateral ratio, protocol tokens, price oracles, liquidation, risks and more!

OpenZeppelin

Welcome Jonathan Alexander, OpenZeppelin’s new CTO

We are excited to announce that Jonathan Alexander is joining OpenZeppelin as CTO. OpenZeppelin is a technology company whose mission is to protect the core infrastructure of an open, global economy.…

Backdooring Gnosis Safe Multisig wallets

Disclosure of a severe attack vector in the deployment of the popular Gnosis Safe Multisig wallet. Proof of concept included.