Consensys Diligence

Consensys Diligence is a leading blockchain security firm specializing in comprehensive smart contract audits and security tools for the Ethereum ecosystem. As part of Consensys, the company has been at the forefront of blockchain security since the early days of Ethereum, protecting over 100 blockchain companies and discovering 200+ critical vulnerabilities.

Core Products and Services

Consensy Diligence offers a complete security stack for blockchain applications, combining manual expert audits with cutting-edge automated analysis tools. Their flagship smart contract audit service provides comprehensive code reviews, vulnerability assessments, and security recommendations for projects preparing to launch. The team has audited major DeFi protocols including Aave, Uniswap, 0x, Balancer, and hundreds of other projects across the Ethereum ecosystem.

Key Security Tools

Beyond audits, Consensys Diligence has developed industry-leading security tools:

Fuzzing Platform: A gray-box property-based fuzzer that executes millions of intelligently selected transactions to test smart contracts at scale. The platform features input prediction, transaction sequence simulation, and incremental fuzzing capabilities, available through subscription plans from free explorer tier to enterprise-grade solutions.

Scribble: A specification language and runtime verification tool that allows developers to annotate smart contracts with security properties directly in their code, enabling automated testing and continuous verification.

MythX: An automated security analysis API that scans for vulnerabilities in Ethereum and EVM-based blockchain smart contracts, integrating directly into development environments for continuous security analysis.

Enterprise Security Services

For enterprise clients, Consensys Diligence provides specialized security counseling including threat modeling to identify attack surfaces, incident response planning for security event management, and comprehensive testing, auditing, and formal verification throughout the blockchain development lifecycle.

Notable Achievements

The team has conducted over 100 public audits for leading blockchain projects, with recent work including Linea (Consensys' zkEVM layer 2), MetaMask features, Lido V3, EigenLayer, and numerous DeFi protocols. Their veteran security auditors combine deep Ethereum expertise with rigorous manual review processes to eliminate spurious results and provide detailed vulnerability reports with mitigation guidance.

Why Choose Consensys Diligence

With direct ties to Ethereum's development through parent company Consensys (founded by Ethereum co-creator Joseph Lubin), Consensys Diligence brings unparalleled protocol knowledge and ecosystem expertise to security engagements. Their suite of open-source tools, comprehensive best practices documentation, and commitment to advancing blockchain security research make them a trusted partner for projects from startups to Fortune 500 enterprises building on Ethereum.