CISA Domain 4: System Interfaces & Data Integrity

This episode is part of the CISA Audit Judgment Series — a scenario-based learning path focused on Domains 4 and 5, the highest-weighted areas of the CISA exam.

In this episode, we examine a scenario where an interface file arrives on time, processes without error, and passes all scheduler checks — yet contains zero records. No alerts were triggered. No completeness checks fired. And Finance only discovered the issue when their totals didn’t match.

You’ll learn:

✔ Why interface failures are a top CISA Domain 4 exam theme

✔ Why “Success” in an interface log does NOT mean complete or accurate data

✔ How junior auditors interpret interface issues vs. how audit leaders evaluate them

✔ What evidence auditors must review for interface integrity

✔ How to assess completeness, reconciliation, exception handling, and monitoring

✔ What CISA really tests in interface-related questions

✔ The operational and financial impact of silent data loss

This episode blends CISA exam judgment with real audit leadership — the foundation of the CyberLex Audit Judgment Series.

If you’re preparing for CISA or sharpening your audit judgment,

explore the CISA Gold Standard Series by M.G. Vance on Amazon.

📘 Amazon link: ⁠https://www.amazon.com/dp/B0FX526S3V⁠

We don’t just help you pass.

We prepare you to become formidable in the field.