FYEO

FYEO is a leading Web3 cybersecurity company founded to be the guiding force in ensuring the secure development and deployment of decentralized and Agentic AI technologies. The company specializes in comprehensive blockchain security audits, AI security assessments, and advanced threat intelligence services.

Core Services

FYEO delivers end-to-end security solutions for Web3 projects, protocols, and enterprises. Their flagship offerings include blockchain code audits with line-by-line interactive review processes, Agentic AI security audits for autonomous systems, enterprise threat modeling workshops, custom blockchain fuzz testing, third-party library scanning with AI-powered analysis, and the FYEO Dark API for leaked credential monitoring. The company has performed security audits for major blockchain protocols including Ethereum Foundation projects, Solana ecosystem projects, and other top-tier Web3 protocols.

Key Strengths

FYEO distinguishes itself through its world-class team of cryptographers, security researchers, and blockchain engineers with deep expertise in DeFi logic, smart contract security, and adversarial testing. The company maintains an active GitHub repository with public audit reports demonstrating transparency and technical rigor. Their custom fuzzing approach extends static analysis with stateful, dynamic verification that approaches mathematical assurance of correctness. FYEO's proprietary FYEO Dark database contains 29+ billion leaked credentials across 22,000+ breaches, providing comprehensive threat intelligence. The team leverages cutting-edge AI and OSINT tools for security research, including their own proprietary models for agentic AI system testing.

Technical Capabilities

FYEO's security audits cover comprehensive code, logic, and functionality review for implementations of advanced cryptographic or blockchain solutions. Their custom fuzz testing services provide bespoke harnesses tailored to specific codebases, with stateful execution, shadow-state tracking, and invariant checking. The team supports multiple blockchain platforms including Solana, EVM-compatible chains, CosmWasm, Move, Sui, and custom execution environments. Their third-party library scanner traces real dependency usage paths, identifies vulnerable transitive dependencies, flags abandoned packages, and uses multi-pass AI analysis to reduce false positives.

Notable Clients and Impact

FYEO is trusted by the world's top Web3 projects and protocols, as evidenced by their client logos and public audit matrix. The company has conducted security assessments for critical infrastructure projects including work with the Axelar Network (collaborative threat modeling) and AR.IO Network (secure code assessment for PDS). Their public audit reports are available on GitHub, demonstrating commitment to transparency and contributing to the broader Web3 security ecosystem.

Why Choose FYEO

FYEO offers a unique combination of deep technical expertise, transparent processes, and cutting-edge security tooling. Their interactive auditing approach provides clients with real-time updates throughout the assessment process, ensuring collaborative engagement rather than black-box review. The company's focus on both traditional blockchain security and emerging Agentic AI security positions them at the forefront of Web3 security innovation. With offices in Boston, Denver, New York, and Stockholm, FYEO serves a global client base while maintaining close relationships with major blockchain ecosystems and foundations.