The SOC 2 audit is a rite of passage for growing SaaS companies. As you prepare your policies, collect evidence, and finalize your system description, one of the most technical and daunting tasks is the penetration test. Unlike policy creation, a pen test is an active, adversarial evaluation of your systems. If you fail it, your audit can be delayed or your report can be filled with exceptions.

This preparation guide will walk you through exactly what you need to do to ensure your penetration test meets SOC 2 requirements and positions you for a clean audit.

Step 1: Define Your SOC 2 System Boundary

Before you even talk to a penetration testing vendor, you must have a clearly defined system boundary . This is a description of the people, processes, technology, and data that are in scope for your SOC 2 report.

• Map Your Data Flows: Create data flow diagrams that show how customer data enters, moves through, and exits your system. These diagrams are the blueprint for your pen test scope.
• Identify In-Scope Assets: List every asset that touches customer data. This includes:
  • Production web applications and APIs.
  • Database servers and data storage buckets.
  • Supporting infrastructure (load balancers, CDNs).
  • Administrative interfaces used to manage the above.

Step 2: Understand the Difference Between a Scan and a Pen Test

A common pitfall for startups is confusing a vulnerability scan with a penetration test .

• Vulnerability Scan: An automated tool that compares your systems against a database of known vulnerabilities (CVEs). It’s fast, broad, and great for hygiene.
• Penetration Test: A human-led exercise that uses tools and techniques to exploit vulnerabilities, chain them together, and demonstrate business impact. This is what SOC 2 auditors expect to see.

Your preparation should include regular vulnerability scanning as part of your ongoing monitoring (CC7.1), but the annual or bi-annual validation must include a human-driven penetration test.

Step 3: Choosing the Right Test Methodology

Auditors will look for evidence that your test followed a structured, industry-standard methodology. Referencing a framework proves that your assessment was thorough and not just a “best effort” exercise. Acceptable methodologies include :

• OWASP Web Security Testing Guide (WSTG): The gold standard for web application and API testing.
• PTES (Penetration Testing Execution Standard): A comprehensive framework covering the entire testing lifecycle.
• NIST SP 800-115: The National Institute of Standards and Technology’s guide for technical security testing.

Step 4: The Pre-Test Scoping Call

This is where many tests succeed or fail. During the scoping call with your vendor, you must clearly communicate your system boundary .

• Provide Credentials (for Grey Box): To get the most value and satisfy SOC 2’s focus on internal controls, provide authenticated access. This allows testers to assess what an attacker could do after compromising a low-level account, such as escalating privileges or accessing sensitive data.
• Clarify Rules of Engagement: Define the testing window (e.g., 9 AM – 5 PM your time), emergency contacts, and procedures for handling critical findings.
• Exclusions: Clearly list any systems that are out of scope (e.g., legacy systems being decommissioned) and justify why they are excluded.

Step 5: Documentation and Remediation Plan

The final deliverable is not just a report; it’s a key piece of audit evidence. Your SOC 2 auditor will scrutinize it.

• The Report: It should clearly state the scope, methodology, and dates of testing. It should list all findings with severity ratings and, most importantly, include reproducible steps .
• The Remediation Plan: You must create a plan to address the findings. For each vulnerability, document your remediation steps.
• Re-Testing Evidence: After you’ve fixed the vulnerabilities, you must have the tester re-validate them. The updated report, showing that critical and high findings are closed, is the final piece of evidence auditors need to see .

Conclusion

Passing a SOC 2 penetration test is achievable with the right preparation. By clearly defining your system boundary, choosing an experienced vendor, and treating the test as a genuine security improvement exercise rather than a hurdle, you will generate the evidence needed to satisfy your auditor and build a more resilient SaaS product.

---

Fill out the following form and someone from our team will reach out to you within 24 hours.