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…

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Uma Audit – Phase 2

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

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Celo Contracts Audit

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

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Uma Audit – Phase 1

Uma is a platform that allows users to enter trust-minimized financial contracts on the Ethereum blockchain. One…

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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.

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.

Compound Gas Optimizations Audit

The Compound team engaged us to audit part of their latest gas optimizations in the protocol.

Flash Loans and the Advent of Episodic Finance

Flash Loans have been making the rounds. Even if the concept has been around for a year or two, it's only very recently that they have been getting a lot of attention with the surge of DeFi, and…

Augur Core v2 Audit: Components

The Augur team asked us to review and audit a number of components of the Augur Core v2 project. We looked at the code and now publish our results.

Augur Core v2 Audit

The Augur team asked us to review and audit their Augur Core v2 project. We looked at the code and now publish our results.

More stories

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.

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.

Compound Gas Optimizations Audit

The Compound team engaged us to audit part of their latest gas optimizations in the protocol.

Flash Loans and the Advent of Episodic Finance

Flash Loans have been making the rounds. Even if the concept has been around for a year or two, it's only very recently that they have been getting a lot of attention with the surge of DeFi, and…

Augur Core v2 Audit: Components

The Augur team asked us to review and audit a number of components of the Augur Core v2 project. We looked at the code and now publish our results.

Augur Core v2 Audit

The Augur team asked us to review and audit their Augur Core v2 project. We looked at the code and now publish our results.