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      AI Advisory

      Strategic guidance for secure AI adoption

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      Blockchain Architecture Assessment

      Reviewing blockchain designs for security and resilience

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      Compliance Readiness

      Aligning controls to evolving regulatory mandates

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      Custody and Key Management Assessment

      Securing digital asset custody and key systems

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      Risk Assessment

      Clarity on your cybersecurity risk posture

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      Technical Due Diligence

      Validating security before third-party commitments

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      Technical Training

      Building blockchain and security skills enterprise-wide

    • Assurance

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      AI Red Teaming

      Adversarial testing against real-world AI threats

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      AI Security Assessment

      Identifying vulnerabilities in AI models and pipelines

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      Blockchain Layer 1 Assessment

      Protocol-level security review of L1 networks

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      Code Security Audit

      Uncovering vulnerabilities in your source code

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      Web Application Penetration Testing

      Exposing exploitable flaws in web applications

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      Cloud Infrastructure Penetration Testing

      Finding weaknesses across cloud environments

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      Red Team Exercise

      Full-scope adversarial simulation of your defenses

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      Smart Contract Assessment

      Code security testing for blockchain-powered applications and systems.

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      Who We Are

      The best security engineers in the world

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      Who Trusts Us

      The trusted security advisor for blockchain and financial services industries

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      Company news and announcements from Halborn

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      Audits

      In-depth evaluations of smart contracts and blockchain infrastructures

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      BVSS

      Blockchain Vulnerability Scoring System

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      Disclosures

      All the latest vulnerabilities discovered by Halborn

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      Case Studies

      How Halborn’s solutions have empowered clients to overcome security issues

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      Reports

      Comprehensive reports and data

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ADVISORY SERVICES

AI AdvisoryRisk AssessmentBlockchain Architecture AssessmentCompliance ReadinessCustody and Key Management AssessmentTechnical Due DiligenceTechnical Training

ASSURANCE SERVICES

AI Security AssessmentAI Red TeamingSmart Contract AssessmentBlockchain Layer 1 AssessmentCode Security AuditWeb Application Penetration TestingCloud Infrastructure Penetration TestingRed Team Exercise

COMPANY

Who We AreWho Trusts UsService CommitmentsCareersBrandBlogPress ReleasesContact

RESOURCES

AuditsDisclosuresReportsBVSSCase Studies
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© Halborn 2026. All rights reserved.

Image

AI Advisory

Strategic guidance for secure AI adoption

Image

Blockchain Architecture Assessment

Reviewing blockchain designs for security and resilience

Image

Compliance Readiness

Aligning controls to evolving regulatory mandates

Image

Custody and Key Management Assessment

Securing digital asset custody and key systems

Image

Risk Assessment

Clarity on your cybersecurity risk posture

Image

Technical Due Diligence

Validating security before third-party commitments

Image

Technical Training

Building blockchain and security skills enterprise-wide

Image

AI Red Teaming

Adversarial testing against real-world AI threats

Image

AI Security Assessment

Identifying vulnerabilities in AI models and pipelines

Image

Blockchain Layer 1 Assessment

Protocol-level security review of L1 networks

Image

Code Security Audit

Uncovering vulnerabilities in your source code

Image

Web Application Penetration Testing

Exposing exploitable flaws in web applications

Image

Cloud Infrastructure Penetration Testing

Finding weaknesses across cloud environments

Image

Red Team Exercise

Full-scope adversarial simulation of your defenses

Image

Smart Contract Assessment

Code security testing for blockchain-powered applications and systems.

Image

Who We Are

The best security engineers in the world

Image

Careers

Work with the elite

Image

Who Trusts Us

The trusted security advisor for blockchain and financial services industries

Image

Brand

Access official logos, fonts, and guidelines

Image

Service Commitments

Committed to Protecting Your Data

Image

Press Releases

Company news and announcements from Halborn

Image

Audits

In-depth evaluations of smart contracts and blockchain infrastructures

Image

BVSS

Blockchain Vulnerability Scoring System

Image

Disclosures

All the latest vulnerabilities discovered by Halborn

Image

Case Studies

How Halborn’s solutions have empowered clients to overcome security issues

Image

Reports

Comprehensive reports and data

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// Where Secure Development Meets Deep Analysis

Code Security Audit

From agile teams to global enterprises, Halborn reviews source code line by line to identify vulnerabilities, eliminate insecure practices, and strengthen your software at its core.

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// Deep Code Expertise. Proven Security Assurance.

WHAT SETS HALBORN APART

EXPERT-LED CODE REVIEW

Conducted by seasoned engineers with backgrounds in secure software design and exploit development

FULL-STACK COVERAGE

Identify vulnerabilities and insecure practices across backend, frontend, and APIs

ACTIONABLE INSIGHTS

Receive prioritized findings and clear recommendations to strengthen your codebase and development practices

Why Halborn - Security monitoring dashboard

In-Depth Code Analysis

Examine every line for logic errors, insecure patterns, and potential vulnerabilities

Developer Focused Insights

Clear guidance that helps teams remediate efficiently and adopt secure coding best practices

Early Risk Detection

Identify weaknesses during development before they evolve into costly security incidents

Continuous Security Integration

Strengthen your SDLC through repeat audits, training, and embedded security at every stage

Where A Code Security Audit Makes the Biggest Impact

Pre-Release Code Reviews
Secure Software Development Lifecycle (SDLC)
Legacy Application Modernization
Third-Party or Open-Source Code Validation
Compliance and Risk Assessments
Continuous Security Assurance

client testimonials

case studies

Halborn

Case Study: Reviewing & Attesting a Regulator-Ready Key Ceremony for Finary

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Frequently Asked Questions

Related Solutions

Smart Contract Assessment

Learn more

Web Application Penetration Test

Learn more

Cloud Infrastructure Penetration Test

Learn more
Securing the Future of Finance

SECURING THE FUTURE
OF FINANCE

READY TO START?

Halborn

Case Study: Strengthening Key Management and Driver Security for IntellectEU's Canton Network Infrastructure

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Halborn

Case Study: Securing Alpend's Privacy-Aware Institutional Money Market on Canton

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Halborn

Case Study: Securing a First-of-Its-Kind Liquidity Layer on the Canton Network for Tradecraft

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Halborn

Case Study: Securing Rayls’ Infrastructure for Institutional Blockchain Adoption

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Halborn

Case Study: Supporting a Large Settlement and Clearing House with Secure by Design Architecture

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Halborn

Case Study: Strengthening Key Management and Driver Security for IntellectEU's Canton Network Infrastructure

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Halborn

Case Study: Securing Alpend's Privacy-Aware Institutional Money Market on Canton

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Halborn

Case Study: Securing a First-of-Its-Kind Liquidity Layer on the Canton Network for Tradecraft

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Halborn

Case Study: Securing Rayls’ Infrastructure for Institutional Blockchain Adoption

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Halborn

Case Study: Supporting a Large Settlement and Clearing House with Secure by Design Architecture

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Why Halborn

$1T

Value protected

5

Publicised zero days

5K+

Assessments completed

15K

Findings

800+

Happy clients

22

Platforms & languages

Certifications and Contributions

CISSP
ISO 27001:2022
OffSec Offensive Security Certified Professional (OSCP)
OffSec Offensive Security Certified Expert (OSCE)
OSWE
OffSec Offensive Security Exploitation Expert (OSEE)
AWS Certified
ISACA Certified Information Systems Auditor (CISA)
NIST CSF

Technologies We Assess

Android
Apple
AWS
Avalanche
Celestia
Circle CI
Cloudflare
Cosmos
Flow
Gitlab
Google Cloud
Hasura
Kubernetes
Near
Sei
Solana
Stellar
Sui

audits

OB
Obsidian

Tradecraft AMM V7

Daml
Smart Contract Assessment
33 findingsOct 2026
002922
NU
NUVA

RemoteVault and CustomToken Diff Audit

EVMSolidity
Smart Contract Assessment
4 findingsOct 2026
00004
SL
Saucerswap Labs

Saucerswap Perpetuals

EVMSolidity
Managed Smart Contract Assessment
55 findingsOct 2026
1212427
SL
Saucerswap Labs

SCA- V3 Limit Order Reactor- PR10

EthereumSolidity
Managed Smart Contract Assessment
14 findingsOct 2026
0003
SU
SUBFROST

Smart Contract Assessment alkanes-rs

BitcoinRust
Smart Contract Assessment
27 findingsOct 2026
001863
NU
NUVA

credit-facility

CosmwasmLending & BorrowingRust
Smart Contract Assessment
4 findingsOct 2026
0000
XM
XMAQUINA

Managed Smart Contract Assessment

Solidity
Managed Smart Contract Assessment
46 findingsSep 2026
0031033
NU
NUVA

RemoteVault and CustomToken Diff Audit

EVMSolidity
Smart Contract Assessment
4 findingsOct 2026
00004
SL
Saucerswap Labs

Saucerswap Perpetuals

EVMSolidity
Managed Smart Contract Assessment
55 findingsOct 2026
1212427
SL
Saucerswap Labs

SCA- V3 Limit Order Reactor- PR10

EthereumSolidity
Managed Smart Contract Assessment
14 findingsOct 2026
0003
SU
SUBFROST

Smart Contract Assessment alkanes-rs

BitcoinRust
Smart Contract Assessment
27 findingsOct 2026
001863
NU
NUVA

credit-facility

CosmwasmLending & BorrowingRust
Smart Contract Assessment
4 findingsOct 2026
0000
11
4
11
4
John Wu, PresidentAVA Labs

John Wu, President

AVA Labs

What sets Halborn apart is its extensive knowledge of best security practices inside and outside of the blockchain industry. With the pen test report on the Avalanche Wallet, Halborn led with the highest level of professionalism and extreme care with every last detail.

Siggi Óskarsson, CTOBSV Association

Siggi Óskarsson, CTO

BSV Association

The thing that stood out for me was a very big click about the mentality and the way to approach the projects. Being very agile and open and collaborative, and looking at this as a partnership. I think that was the biggest selling point for me. It’s not like we are doing this SOW for three months and then after the three months we will evaluate, no, we are doing that each week and talking about it continuously and steering in a different direction if necessary halfway through the project. That flexibility and agility was the key for me.

Larin Krämer, Functional Lead, Digital Assets Infrastructure Bank Frick

Larin Krämer, Functional Lead, Digital Assets Infrastructure

Bank Frick

Working with Halborn underlined our commitment to security, transparency, and ongoing excellence in digital asset custody. Their advanced approach to key ceremony auditing supported our mission to set industry-leading standards as a trusted blockchain bank

Shaun Martinak, Researcher, Portfolio ManagerCoinbase Asset Management

Shaun Martinak, Researcher, Portfolio Manager

Coinbase Asset Management

As we searched for security partners, Halborn quickly rose to the top of that list because of their experience working across a range of technology stacks and having the deep experience to be able to integrate decentralized networks, cryptographic computing into that broader vision, and to help us test all aspects of it.

Brendon Sedo, ContributorCore DAO

Brendon Sedo, Contributor

Core DAO

Our strategy on security is to get to work with the best partners—you being one of them, as Halborn has a great reputation and do a lot of diligence with these partners. We took a lot of time to make sure that everything was built right because we take security really seriously.

Jon Eichhorn, Risk DirectorCrossmint

Jon Eichhorn, Risk Director

Crossmint

Halborn provides a quality review process and a positive experience throughout the engagement while performing an in-depth technical analysis. Their review gives us additional comfort in our solutions, knowing they have been audited by a qualified, independent organization.

Inder Singh, VP of Product/TechD3 Inc

Inder Singh, VP of Product/Tech

D3 Inc

The largest registrars trust the Doma platform to bring the $360B+ asset class onchain. Security is paramount, and Halborn ensures the infrastructure is production ready.

Robert Bryan, FounderKarate Combat

Robert Bryan, Founder

Karate Combat

We thought you were so much better, technically, than the other firms. But just looking at your general processes and the amount of time you are spending versus the other offerings out there, we thought it made a lot of sense because it's very important: we have a very valuable asset that is now going into this structure, and we want to make sure it's entirely secure.

Michael Steuer, Co-Founder & CTOMAKE

Michael Steuer, Co-Founder & CTO

MAKE

Halborn has a tremendous reputation and track record. We had heard from other projects that we are close with about the great experience they had with Halborn. So, after learning more about Halborn's approach to auditing, it was really a done deal.

James Poole, Founding ContributorRenzo

James Poole, Founding Contributor

Renzo

Halborn has been a tremendous resource on the security side as Renzo has evolved from a simple initial protocol to a multi-chain ecosystem. They have been a true partner with our product and users being the ultimate beneficiary of their hard work and dedication.

Kenny Lei, Engineering ManagerRipple

Kenny Lei, Engineering Manager

Ripple

Halborn brought immediate value from day one, rapidly understood the XRP Ledger architecture, and delivered clear, actionable insights that strengthened the security of our new features.

Brandon Truong, Head of ProductZetachain

Brandon Truong, Head of Product

Zetachain

With audits there's real work, and it's represented by the reputation Halborn has. And from some of the people we had talked to, who have worked with you before, it seemed like a perfect fit because you aren't just specialized on smart contracts. I think it really helped in making a decision to work with Halborn: a comprehensive partner we can work with even beyond Mainnet.

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