Doubling Down on Open Source Tools and Phasing Out Defender

OpenZeppelin is doubling down on open source development tools by sunsetting Defender and releasing production-ready open source Relayers and Monitor. Discover new features, and our expanded open ...

On Sunday May 2nd, 2021, the Fei Labs team identified an economic vulnerability that affected the...

Announcements

Upgradeable contracts allow us to alter a smart contract to fix a bug, add additional features, or...

Products

The Alpha Finance Lab team asked us to review and audit their Homora V2 smart contracts. We looked...

Security Audits

This new release introduces UUPS proxies as a cheaper alternative to Transparent proxies....

Products

The Graph team asked us to audit a bugfix present in the Staking contract when an allocation is...

Security Audits

The Graph team asked us to audit an upgrade of the DisputeManager contract that adds separated...

Security Audits

The Graph team asked us to audit a bugfix of an issue regarding the Staking contract.

Security Audits

The Graph team asked us to audit the new functionality of the Managed contract that saves on gas...

Security Audits

The Graph team asked us to audit a new set of contracts that should enhance the existing governance...

Security Audits Governance

Upgradeable contracts allow us to alter a smart contract to fix a bug, add additional features, or...

Products

Access control—that is, “who is allowed to do this thing”—is incredibly important in the world of...

Products

In this audit we are taking an iterative approach where we will review individual pull requests as...

Security Audits Solidity oracle