Trail of Bits

Founded in 2012, Trail of Bits is a leading cybersecurity research and consulting firm that has secured some of the world's most targeted organizations and devices. They combine high-end security research with a real-world attacker mentality to reduce risk and fortify code. Their clientele ranges from major technology companies like Facebook to government agencies like DARPA, with dedicated security teams seeking their foundational tools and deep expertise in reverse engineering, cryptography, virtualization, malware, and software exploits.

Core Services

Software Assurance

Comprehensive security assessments at any stage of the software development life cycle (SDLC), with specialized expertise across four primary areas: application security, blockchain, cryptography, and AI/ML. Their approach integrates targeted assessments with cross-functional teams for complex, multidisciplinary projects.

Blockchain Security

Pioneering blockchain security firm that was among the first to transition from Web 2.0 to explore blockchain technologies. Expert reviewers of all facets of blockchain applications, from smart contracts to off-chain components, working across Ethereum, Optimism, Cosmos, Substrate, Solana, Starknet, TON, and Aptos ecosystems.

Security Engineering

Dedicated engineering support for security projects, including custom tool development and vulnerability remediation to keep software secure from development through testing and continuous deployment.

Research & Development

Industry leaders in high-end security research with a track record of discovering critical Internet vulnerabilities in targets hardened by dedicated security teams.

Unique Selling Points

Open Source Security Tools

Creators of industry-leading blockchain security tools that they leverage in their own security reviews:

• Slither: Static analysis framework for Solidity
• Echidna: Ethereum smart contract fuzzer
• Medusa: Cross-platform smart contract fuzzer

Academic-Grade Methodology

Their team applies cutting-edge research techniques including formal verification, invariant testing, and static analysis to provide greater confidence in security assessments.

Multi-Ecosystem Expertise

Deep expertise across all major blockchain platforms including Ethereum, Solana, Cosmos, Substrate, and emerging L2 solutions, enabling comprehensive cross-chain security analysis.

Full SDLC Coverage

Services designed to support projects at any development stage, from early design assessment through comprehensive code audits and ongoing security support.

Notable Clients

Facebook, DARPA, and numerous enterprise organizations, blockchain protocols, and DeFi projects seeking the highest tier of security assurance.

Why Choose Trail of Bits

Trail of Bits combines over a decade of security research excellence with pioneering blockchain expertise. Their team of principal security engineers brings unparalleled depth in smart contract auditing, cryptographic analysis, and systems security. As creators of the most widely-used open source blockchain security tools, they offer assessments backed by technology they built and continuously improve. Their commitment to sharing research benefits the entire security community while maintaining the highest standards for client engagements.