Principal-led by design
Every engagement has a named Principal responsible for scope, communication, delivery judgment, quality, and final reporting.
About
Senior security judgment for systems where compromise becomes a business problem.
Founded in 2022, Guvenkaya Advisory was built for organizations operating high-stakes digital systems where failures can affect funds, trust, operations, or resilience. Our work spans digital asset infrastructure, custody and key-management models, financial technology, blockchain systems, applications, infrastructure, and secure architecture and process design.
Start an engagementFounded
2022
Origin
Guvenkaya began from a simple observation: the hardest security problems rarely live in code alone. Serious teams need someone who can look across architecture, infrastructure, product decisions, operations, and engineering practice; identify what actually matters; and help reduce risk without burying teams in generic audit output. That is why we pair senior security judgment with scope-specific technical depth and tailored deliverables rather than a narrow audit report.
Why Guvenkaya
Technical depth where risk concentrates, with Principal accountability from scope to final reporting.
Expertise matched to the scope
Engagement teams are composed around the system, risk model, and client context, pairing the Principal with senior Specialist Advisers where their domain expertise strengthens the work.
Review and design beyond the audit
We look beyond code to architecture, infrastructure, key management, operational assumptions, workflows, key ceremonies, controls, and launch-critical decisions.
Experience in high-stakes systems
Our advisers bring direct experience reviewing leading protocols, Layer-1 systems, centralized exchanges, custody models, and building security programs in demanding environments.
Founder & Partner
Timur Guvenkaya
He founded Guvenkaya to bring senior security judgment to teams operating high-stakes digital systems. His background spans Web2 application security, Web3 protocol review, blockchain security engineering, custody and key-management risk, and technical security education.
Before Guvenkaya, Timur established and led a security engineering practice for complex blockchain systems, with specialization in Rust-based and non-EVM ecosystems including Substrate and NEAR. Earlier, at Invicti Security, he helped develop JWT vulnerability-scanning technology used by Fortune 50 companies and public-sector organizations. His work now supports Guvenkaya engagements across security reviews, secure architecture and process design, diligence, advisory, and technical training.
- Web2 and Web3 security background across application security, protocol review, blockchain systems, and custody risk
- Security engineering leadership for complex blockchain systems, with Rust-based and non-EVM specialization
- Enterprise vulnerability-scanning technology, including JWT security engine work used by Fortune 50 companies and public-sector organizations
- Technical security education across Rust, smart contracts, blockchain systems, and secure application design
Discuss the risk picture with a named Principal.
Bring a defined review target, custody workflow, design question, digital asset program, diligence question, or unclear security concern. Guvenkaya will help route it to the right review, assessment, design, or advisory engagement.