Cross-Chain Bridge Audit

Code review & security analysis for cross-chain crypto bridges.

Bridge Audit
protected clients
ecosystem partners
top-class engineers
years of expertise

Cross-Chain Bridge Audit could have prevented these hacks:

  • Poly Network

    Poly Network $611M

    function hash signature collisions

  • BSC Token Hub

    BSC Token Hub $586M

    vulnerability in the 3rd party component used for verification

  • Wormhole

    Wormhole $326M

    signature forgery due to the broken way the contract initialized the system library

Common threats for cross-chain bridges:

  • Chain reorganization/finality

  • Mixing of chain IDs

  • Signature forgery

  • Code/architecture vulnerabilities

  • Dependency on legacy contracts/libraries

  • Infinite approvals & arbitrary executions

What our blockchain bridge audit includes:

Report image
  • A line-by-line examination of the entire codebase, dependencies, algorithm/math model & business logic.

  • Building proof of concept for found bugs and risk assessment for vulnerable dependencies.

  • Source code examination with advanced analytical tools.

View audited projectsView our methodology

How does it work?

How Audit Works Image

You submit the request along with the required documentation. We agree on the price, scope & timeline.

2 - 5 days

  • 1

    Request a quote

  • 2

    Audit report

  • 3

    Remediation check

  • 4


On average, it takes from 10 to 20 business days to complete the audit.

Benefits of crypto bridge auditing by Hacken

Security Record Image

Proven Security Record

No exploits of our clients in 2022.

Robust Security Image

Robust Security

Manual review, overview of all found issues, audit score & suggestions.

Expertise Image


Knowledgeable and certified auditors following security best practices.

Transparent Pricing Image

Transparent Pricing

With detailed breakdown & no hidden fees.

Recognition Image


Successful wallet audit with Hacken are recognised by CoinGecko, CMC, and

Reputation Image


Hacken is a trusted blockchain security auditor for 200+ partners.

Clients say

  • CoinGecko logo

    "CoinGecko is excited about working with Hacken for our bug bounty program. We are well aware of the dangers that vulnerabilities may present to our users and this is one way where we take proactive steps together with Hacken to ensure and improve the safety, security, and integrity of our platform."

    Booby Ong

    Co-founder, CoinGecko
  • Binance logo

    "Hacken’s work to analyze our recent Proof of Reserves update is a great example of the power of community feedback."


  • Near logo

    "We highly recommend Hacken to anyone in need of Web3 security services and a reliable partner for their blockchain initiatives. Their team’s professionalism and expertise in the security space have helped us to secure an ecosystem for our users."

    Isha Tyagi

    Technical Program Manager
  • Aurora logo

    "Hacken has provided mature security audits with a proactive approach, prompt communication and valuable security recommendations. We appreciate our partnership and would recommend collaboration with Hacken to anyone keen to strengthen their code’s resilience."


  • logo

    "Internal stakeholders are impressed with the work Hacken has completed so far. An organized team, they’ve managed the project well, never letting the six-hour time difference get in the way of productivity. Customers can expect an experienced and professional partner."

    Tony Wei

  • Vechain logo

    "Hacken founders inherited quality, professionalism, and integrity from Deloitte, their ex-employer."

    Sunny Lu

    CEO, Vechain
  • EBSI logo

    "Hacken’s meticulous approach to the audit process ensured that our smart contracts were reviewed comprehensively. Their professionalism and dedication were evident throughout the audit."


  • Wemade logo

    "Hacken has provided highly professional audits with outstanding quality. We are delighted to work with such a well-known and trusted security vendor."

    Jason, Seong Ho Lee

    DeFi Product Owner, Wemade
  • IoTex logo

    "As our security partner, Hacken’s team of experts is a pleasure to work with. Their persistence in making recommendations and solving problems is impressive."

    Qevan Guo

    Co-founder, IoTeX
  • Status logo

    "Entrusting Hacken with a bug bounty program was the right call for us. They took care of all the routine processes and helped us make our products more secure."


  • PAID Network logo

    "They've extended their background and clarification on the subject to ensure the project's success."

    Ruben Guevara

    DevOps Engineer Security Oriented, PAID Network

Other Web3 security services