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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

EVM Cross-Chain Bridge Security Audit

Secure your bridge's value transfer between Ethereum L2s and EVM chains. Our expert audits assess smart contract logic, message validation, and economic security to prevent exploits before mainnet launch.
Chainscore © 2026
overview
FULL-STACK INFRASTRUCTURE

Custom Blockchain Development

Build, deploy, and scale custom blockchain networks and applications with expert engineering.

We architect and implement bespoke blockchain solutions from the ground up. Our team delivers production-ready networks, smart contract suites, and full-stack dApps tailored to your specific business logic and compliance requirements.

From a 2-week MVP to a multi-chain enterprise system, we provide the technical leadership to turn your concept into a live, secure product.

  • Core Protocol Development: Custom L1/L2 chains, consensus mechanisms (PoS, PoA), and bridging solutions.
  • Smart Contract Engineering: Gas-optimized Solidity 0.8+/Rust contracts with OpenZeppelin standards and formal verification.
  • Full-Stack dApps: Integrated frontends (React/Next.js), indexers (The Graph), and wallets for a complete user experience.
  • Deployment & DevOps: Automated CI/CD, node orchestration, and 99.9% uptime SLA monitoring with Prometheus/Grafana.
key-features-cards
PROVEN FRAMEWORK

Our Bridge Security Audit Methodology

Our structured, multi-layered approach systematically deconstructs your bridge's architecture to identify critical vulnerabilities, ensuring robust security and operational resilience.

01

Architecture & Design Review

We analyze the bridge's core architecture, consensus mechanisms, and governance models for systemic risks, ensuring a sound foundation before line-by-line code review.

100%
Coverage
O(1) Focus
Complexity Analysis
02

Smart Contract Security Analysis

In-depth manual and automated review of all on-chain logic (Solidity/Vyper) for reentrancy, access control, and economic vulnerabilities, following OpenZeppelin standards.

100%
Line Coverage
OWASP Top 10
Vulnerability Map
03

Relayer & Off-Chain Component Audit

Security assessment of off-chain components, including signer nodes, oracles, and relayer infrastructure, for consensus flaws and availability risks.

> 99%
Uptime Analysis
BFT Review
Fault Tolerance
04

Cryptographic & Economic Review

Verification of signature schemes (ECDSA, BLS), randomness sources, and incentive models to prevent cryptographic failures and economic exploits.

Zero-Knowledge
Proof Review
Game Theory
Model Validation
05

Final Verification & Reporting

Delivery of a comprehensive audit report with severity-ranked findings, actionable remediation guidance, and a final verification pass on fixes.

< 72h
Remediation Review
Executive Summary
Included
benefits
BEYOND STANDARD SECURITY

Why a Specialized Bridge Audit is Critical

Cross-chain bridges are the most targeted attack vectors in Web3, requiring deep protocol-specific expertise. Our audits go beyond generic smart contract checks to secure the entire interoperability lifecycle.

01

Protocol-Specific Vulnerability Detection

We audit for bridge-specific risks like reentrancy in message relays, signature verification flaws, and liquidity pool manipulation that generic auditors miss. Our team has deep experience with Wormhole, LayerZero, Axelar, and Hyperlane architectures.

40+
Bridge-Specific Risks
5+
Major Protocols
02

Economic & Incentive Model Review

We analyze the economic security of your bridge, including validator/staker incentives, slashing conditions, fee mechanisms, and liquidity provider risks to prevent protocol insolvency and governance attacks.

100%
Coverage
3-Tier
Model Analysis
03

End-to-End Integration Security

Our audit covers the full stack: smart contracts, off-chain relayers, oracles, front-end interfaces, and admin controls. We ensure secure key management and upgrade paths to eliminate single points of failure.

7 Layers
Security Audit
Zero Trust
Architecture
05

Post-Audit Threat Monitoring

Receive ongoing monitoring for new vulnerabilities specific to your bridge's architecture and dependencies. We provide actionable alerts and mitigation strategies within 24 hours of disclosure.

24h
Response Time
Active
Monitoring
06

Clear Remediation & Developer Support

Get prioritized, actionable fixes—not just a report. Our engineers provide direct support to your team to implement critical patches, with re-audits of high-severity issues included.

Priority
Fix Guidance
Included
Re-Audits
Choose the right audit depth for your bridge

Comprehensive Audit Scope & Deliverables

Our tiered audit packages are designed to provide the appropriate level of scrutiny, from a foundational review to a full-spectrum security assessment with ongoing support.

Audit ComponentStarter AuditProfessional AuditEnterprise Audit

Smart Contract Core Logic Review

Cross-Chain Message Protocol Analysis

Relayer & Validator Set Security

Economic & Incentive Model Review

Gas Optimization & Cost Analysis

Formal Verification (Key Functions)

Detailed Audit Report & Remediation Guide

Post-Audit Consultation (Hours)

2 hours

8 hours

Unlimited

Re-Audit of Critical Fixes

Vulnerability Disclosure Coordination

Typical Timeline

2-3 weeks

4-5 weeks

6-8 weeks

Starting Investment

$15,000

$45,000

Custom Quote

process-walkthrough
CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built by Web3 specialists to power your protocol.

We architect and deploy production-ready smart contracts for DeFi, NFTs, and dApps. Our development process ensures security-first design, gas optimization, and upgradeability from day one.

  • Custom Logic: Build ERC-20, ERC-721, ERC-1155, and bespoke contracts for unique use cases.
  • Security Audits: All code undergoes internal review and can be prepared for third-party audits from firms like CertiK or OpenZeppelin.
  • Full Deployment: We handle deployment, verification on Etherscan, and initial testing on testnets and mainnet.

Reduce your time-to-market and technical risk with battle-tested Solidity or Vyper development.

Why a Bridge-Specific Audit is Critical

Chainscore Audit vs. Generic Smart Contract Review

Generic smart contract reviews often miss the complex, cross-chain attack vectors unique to bridges. Our audits are engineered specifically for the EVM bridge ecosystem.

Audit DimensionGeneric Smart Contract ReviewChainscore Bridge Security Audit

Focus & Methodology

General Solidity patterns, basic vulnerabilities

Cross-chain message validation, asset escrow logic, relay security, MEV resistance

Bridge-Specific Coverage

Limited or none

Full coverage of deposit/withdrawal flows, pause mechanisms, upgradability risks, oracle reliance

Formal Verification

Rarely included

Critical state transitions and invariants formally verified

Gas Optimization Review

Basic suggestions

Deep analysis for cross-chain call batching and relay efficiency

Third-Party Dependency Audit

Surface-level

In-depth review of oracles, relayers, and external libraries

Final Report Depth

Vulnerability list with generic fixes

Prioritized exploit scenarios, detailed remediation steps, and post-fix verification

Time to Completion

1-2 weeks

3-4 weeks for comprehensive analysis

Typical Investment

$5K - $15K

$25K - $75K+ (scales with complexity)

Your Security Questions, Answered

EVM Cross-Chain Bridge Audit FAQs

Get clarity on our specialized audit process for EVM-based cross-chain bridges, designed to secure high-value assets and complex logic.

We employ a four-phase methodology tailored for bridge vulnerabilities: 1) Architecture Review of the entire message-passing and validation flow. 2) Automated Analysis using Slither and custom tools for common patterns. 3) Manual Code Review focused on asset custody, relayers, fraud proofs, and signature verification. 4) Final Report & Remediation Support with severity-ranked findings and actionable fixes. This process has secured over $2.5B+ in bridge TVL.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team