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Leaders in blockchain security

We find vulnerabilities before the bad guys do.

At FYEO we have some of the world's leading experts in DeFi logic to test and analyze systems for potential vulnerabilities. Our services include comprehensive code, logic, and functionality review for implementations of advanced cryptographic or blockchain solutions.

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Trusted by the world’s top Web3 projects and protocols

FYEO Audit Process

What sets FYEO apart from the rest is not only our talent but our approach. We aim to give your team real-time updates throughout our line-by-line interactive auditing process.


Blockchain security services

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Code reviews

Senior Cryptographers and Engineers test and analyze your system for potential vulnerabilities

Comprehensive code, logic, and functionality review for implementations of advanced cryptographic or ledger solutions.

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Research and innovation

We help your business with the means to innovate on the blockchain, and offer our development engine for proprietary products to help your business realize its vision.



Comprehensive analysis and design for blockchain solutions using our security expertise.

Our trained researchers leverage their business acumen to provide you with a starting point when building on blockchain and distributed ledger technology.

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Architecture and development

Full-stack development services including architecture, design, documentation, code generation, and operational oversight from our internal and/or partner resources.

Dynamic wallet testing
FYEO’s Dynamic Wallet Testing helps you uncover vulnerabilities and protects both your application and your users.

FYEO Dynamic Wallet Testing is a framework coupled with a threat model that analyzes your wallet code inside a virtualized browsers’ environment to help you uncover if your wallet is leaking critical data or vulnerable to browser exploitation and how your wallet is interacting with the browser and your users' data.

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The goal of an audit with FYEO

When FYEO performs an audit, we focus on the code committed when the code base is feature complete at a specific time. Our goal is to provide our clients the following:

  1. Verification that the intention of the project aligns with the implementation of the code.

  2. An improved understanding of its security standing to help identify current and future risks in its deployed chain & contract infrastructure.

  3. Our opinion on what security measures you currently have in place and an analysis of their maturity, adequacy, and efficiency.

  4. Identify potential issues, including loss of funds scenarios; including recommendations on how to improvebased on the result of our assessment.

  5. Insight into and advice for your development team on how to write and maintain more secure code. A high standard of security is crucial for maintaining a quality product - our blockchain security services can help ensure that you do.

Ready for an audit?

Get started by clicking the button below!
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