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Protect Your Crypto wallets with Industry-Leading Security Audits

Ensure the safety of your digital assets with ExVul’s comprehensive wallet audit services.

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Our Service Process

Requirement Gathering

Collaborate with clients to define the audit scope, wallet SDK features, and security needs.

Risk Assessment & Testing

Use static code analysis tools and manual verification to uncover vulnerabilities such as authorization issues, transaction rollback attacks, and insecure random number

Remediation Guidance

Provide detailed recommendations for fixing vulnerabilities and optimizing code.

Final Report Delivery

Submit a complete report with findings, risk ratings, and actionable remediation steps.

Audit Scope

Basic Security Checks

Verification control, access control,transaction rollback, and transaction blocking attack prevention.

Advanced Code Review

◦ Cryptographic implementation verification.

◦ Sensitive information leakage and malicious code behavior detection.

◦ System API analysis and blacklist control.

Business Logic Evaluation

◦ Assess the security of wallet business logic.

◦ Ensure secure random number generation and asset authorization management.

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Technical Approach

Apply the OWASP Risk Assessment Methodology to rate vulnerabilities based on likelihood and impact.

Conduct static code analysis and business logic reviews to identify potential threats.

Deploy code in a private test environment for validation and provide Proof of Concept (PoC) for identified issues.

Deliverables

Comprehensive Vulnerability List

Includes critical issues, severity ratings, and prioritized recommendations.

Detailed Test Documentation

Complete records of the audit process, including code reviews and findings.

Code Optimization Recommendations

Best practices and guidance for improving code quality.
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Success Stories

Completed multiple wallet security audits, including OKX Wallet SDK, identifying and fixing critical vulnerabilities.

Client Feedback:

“ExVul’s audit report was thorough and precise, signifi […]

FAQs

1. How long does a wallet audit take?

Typically 2‒4 weeks, depending on the complexity of the wallet.

2. Which languages do you support?

We support Go, TypeScript, Solana, and more.

3. How is data security ensured?

We adhere to strict confidentiality agreements and industry best practices.

Let’s Work Together! Drop us a note now.

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