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Assessments2026-02-01· 10 min read

Running Your First Internal Security Audit: What to Measure and How to Report

Why Internal Assessments Matter

External audits (SOC 2, ISO 27001 certification) are point-in-time evaluations driven by compliance requirements. Internal security assessments are how you stay ahead between those formal audits - identifying gaps before an external auditor (or an attacker) finds them.

Scoping the Assessment

Don't try to audit everything at once. Pick one domain and go deep. Good candidates for a first assessment:

  • Access management - Who has access to what? Are there orphaned accounts? Is MFA enforced everywhere?
  • Patch management - Are systems patched within your defined SLAs? What's the average time to patch critical vulnerabilities?
  • Incident response readiness - Does the IR plan exist? Is it current? Has it been tested? Do team members know their roles?
  • Data protection - How is sensitive data classified, stored, and transmitted? Are encryption requirements met?

Conducting the Assessment

1. Define Criteria

What "good" looks like. Use your own policies as the baseline - if your policy says MFA is required for all admin access, test whether that's actually true.

2. Gather Evidence

Review configurations, pull system reports, interview process owners. Don't rely on self-reported compliance - verify independently.

3. Document Findings

For each finding, document:

  • What was found - the specific gap or non-compliance
  • Risk level - Critical, High, Medium, Low
  • Evidence - screenshot, report, or configuration showing the issue
  • Recommendation - what needs to change
  • Owner - who is responsible for remediation

Reporting

Your report should have three sections:

  1. Executive summary - 1 paragraph. Overall posture, number of findings by severity, top 3 priorities.
  2. Findings detail - Each finding with the documentation above.
  3. Remediation tracker - Table with finding, owner, target date, status.

Keep it factual and constructive. The goal is improvement, not blame.

Cadence

Aim for quarterly assessments, rotating through different domains. Over a year, you'll cover access management, patch management, incident response, data protection, vendor risk, and business continuity - giving you continuous visibility into your security posture.