Smart Contract Audit Guide

Everything you need to know about preparing for, conducting, and leveraging smart contract security audits.

The Audit Process

1

Pre-Audit Preparation

Prepare your codebase and documentation before the audit.

  • Complete development and freeze code
  • Write comprehensive documentation
  • Run automated security tools
  • Prepare deployment scripts
  • Document known issues and design decisions
2

Auditor Selection

Choose qualified auditors for your project.

  • Research auditor reputation and past work
  • Request quotes from multiple firms
  • Verify auditor expertise in your protocol type
  • Check for conflicts of interest
  • Agree on timeline and scope
3

Active Audit Phase

Collaborate with auditors during the review.

  • Provide access to codebase and docs
  • Schedule kickoff call
  • Be available for questions
  • Review preliminary findings
  • Discuss severity classifications
4

Remediation

Address identified issues and verify fixes.

  • Prioritize critical and high issues
  • Implement fixes carefully
  • Document reasoning for any accepted risks
  • Request re-review of fixes
  • Update documentation
5

Final Report

Publish the audit report and prepare for launch.

  • Review final report
  • Publish report publicly
  • Set up bug bounty program
  • Plan incident response procedure
  • Monitor post-launch

Pre-Audit Checklist

Access Control

  • Ownable/AccessControl implemented
  • Admin functions protected
  • Privileged roles documented

Reentrancy

  • CEI pattern followed
  • ReentrancyGuard where needed
  • External calls minimized

Arithmetic

  • Solidity 0.8+ or SafeMath
  • Division by zero handled
  • Overflow scenarios tested

External Calls

  • Return values checked
  • Untrusted contracts handled
  • Gas limits considered

Testing

  • 100% function coverage
  • Edge cases tested
  • Fuzz tests included

Recommended Auditors

Important Note

An audit is not a guarantee of security. Always combine audits with ongoing monitoring, bug bounties, and multiple layers of defense.