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 Relayer and Monitor. Discover new features, and our expanded open ...

Smart contract audit. Phase 1&2; we audited the taikoxyz/taiko-mono repository. Phase 3; we audited...

Security Audits Solidity Rollup

Smart Contract Audit. We audited the Consensys/zkevm-monorepo repository at commit 7f3614e. The...

Security Audits Solidity Rollup

We audited the mantlenetworkio/mantle-v2 repository at commit e29d360. In scope were the following...

Security Audits L2's Solidity Rollup

The code under review introduces a new L2 transaction type to support upgrade transactions...

Security Audits Solidity Rollup

Scroll is an EVM-equivalent zk-Rollup designed to be a scaling solution for Ethereum. It achieves...

Security Audits ZKP Bridge Rollup

Scroll is an EVM-equivalent ZK-rollup designed to be a scaling solution for Ethereum. It achieves...

Security Audits ZKP Solidity Bridge Rollup

Scroll is an EVM-equivalent ZK-rollup designed to be a scaling solution for Ethereum. It achieves...

Security Audits ZKP Solidity Bridge Rollup

Scroll's architecture and code structure draw inspiration from other Layer 2 solutions such as...

Security Audits ZKP Solidity Bridge Rollup

zkSync Era is a permissionless general-purpose ZK rollup that operates similarly to L1 blockchains...

Security Audits Solidity Rollup

zkSync is a layer 2 scaling solution for Ethereum based on zero-knowledge rollup technology. The...

Security Audits Solidity Rollup

zkSync is a layer 2 scaling solution for Ethereum based on zero-knowledge rollup technology. The...

Security Audits Solidity Rollup

This first security assessment for zkSync 2.0 was prepared by OpenZeppelin, as part of an ongoing...

Security Audits Solidity Rollup