An IT compliance audit examines your systems, policies, and processes to confirm you meet legal, regulatory, and industry-standard requirements. Without knowing what's actually assessed, you risk discovering expensive gaps only after an audit fails or a breach occurs. This guide breaks down the scope so you can prepare effectively and understand what vendors will evaluate.
Core Systems and Infrastructure
Auditors review your network architecture, server configurations, and data storage setup to confirm they align with security standards. They'll check whether systems are patched, whether firewalls are correctly configured, and whether access controls limit who can reach sensitive data. Expect this phase to take 20–40 hours depending on your infrastructure size; vendors typically charge $150–$300 per hour for technical assessment work.
Your cloud environments (AWS, Azure, Google Cloud) receive the same scrutiny as on-premises systems. Auditors verify encryption settings, backup procedures, and whether unused resources are decommissioned. If you've contracted third-party managed service providers, your auditor will review their security controls too—vendor risk is part of scope.
User Access and Identity Management
Who has access to what, and why? Auditors pull user permission reports from Active Directory, cloud platforms, and applications to confirm the principle of least privilege is enforced. They look for dormant accounts, shared credentials, and whether admin rights are properly restricted.
Multi-factor authentication (MFA) status is now standard in most audits. If your organization isn't requiring MFA for remote access, VPNs, or cloud applications, expect this to be flagged as a critical finding. Most audits assume MFA should be enabled for 90–100% of user accounts.
Data Protection and Privacy
This section examines how you classify, encrypt, and protect sensitive data—personally identifiable information (PII), payment card data, health records, or intellectual property. Auditors verify:
- Encryption for data at rest and in transit
- Data retention and deletion policies
- Backup and recovery testing (not just having backups, but proving they work)
- Whether data handling processes match your privacy policy
If you operate under GDPR, HIPAA, PCI DSS, or SOC 2, your audit scope will explicitly map controls to these frameworks. Scope expansion for compliance-heavy industries typically adds 30–50% to total audit hours.
Security Policies and Change Management
Auditors request your security policy documentation, incident response plan, business continuity procedures, and vendor management processes. They verify policies exist, are current, and are actually followed—not just sitting in a shared drive unread.
Change management is a frequent finding area. Do you have a formal process for deploying software patches or configuration changes? Are changes logged and approved before deployment? Lack of documented procedures here often results in medium-severity audit findings.
Incident Response and Logging
Your organization must demonstrate the ability to detect, log, and respond to security incidents. Auditors examine whether you retain security logs for at least 90 days (often 365+ days is recommended), and whether you've actually reviewed them for suspicious activity.
They'll ask whether you've tested your incident response plan in the past 12 months. A tabletop exercise or simulated breach response is increasingly expected, not optional. If you haven't done this, budget 8–12 hours of vendor time to help design and facilitate a test.
Third-Party and Vendor Risk
Your suppliers' security practices matter. Auditors review your vendor assessment process—do you evaluate security questionnaires from vendors? Have you reviewed their certifications (SOC 2, ISO 27001)? Are contracts updated to include security and compliance requirements?
This is one area where you can significantly reduce audit scope and cost by doing homework upfront. Vendors charge $50–$100 per hour to assess vendor risk; doing baseline vendor reviews yourself first saves money.
Compliance Status and Remediation
At the end, your auditor will deliver findings organized by severity. Low findings might be documentation improvements; medium findings typically require process changes or configuration updates within 30–90 days; critical findings demand immediate action.
Budget 10–20% of your initial audit cost for remediation support from your vendor. A typical small-to-medium business audit (50–300 employees) costs $8,000–$25,000 and takes 4–8 weeks from kickoff to final report.
Mercoly helps you find and compare IT compliance and audit providers based on your specific industry requirements and budget, so you get matched with vendors who understand your regulatory landscape.
Frequently Asked Questions
Q: How often should we conduct a compliance audit? Most industries require annual audits, though some (like financial services) mandate more frequent reviews. Check your specific regulatory requirements or ask your auditor to recommend a schedule.
Q: What's the difference between an audit and a risk assessment? A risk assessment identifies vulnerabilities; an audit confirms you meet specific compliance standards. Most organizations need both.
Q: Can we do a partial audit instead of full scope? Yes—you can scope audits to specific systems, departments, or compliance frameworks. Partial audits cost 20–40% less but leave gaps in your overall security posture.
Ready to understand your compliance gap? Get connected with vetted IT compliance auditors on Mercoly today.