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Preparing a security audit: the complete checklist for CTOs

Published on 2026-02-205 min readCleanIssue

> TL;DR: About to have your application audited? Here's how to prepare for optimal results.

Before the audit: gather information

  • Application URL (production, staging, admin)
  • Technical stack
  • Recent changes
  • Test accounts (optional for external review)
  • Desired scope
  • During external review

    Nothing to do. No access needed, no coordination required.

    After the audit: action plan

  • Read the full report
  • Fix critical flaws first
  • Schedule a re-test
  • Keep the report (GDPR due diligence evidence)
  • Key Takeaways

  • Identify and test your exposed attack surfaces before a third party does.
  • Client-side security controls never replace server-side validation.
  • Regular audits are more effective than one-time checks — vulnerabilities appear with every deployment.
  • Building HR, payroll, or recruiting software? CleanIssue performs security audits for HR SaaS in real-world conditions, no source code access needed. For a first read of your exposure, start with an external review of your application.

    Sources

    Written by CleanIssue
    Reviewed on 2026-02-20

    Editorial analysis based on official vendor, project, and regulator documentation.

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