What does an IT auditor do? Roles, skills and certifications

Update note: Originally published in August 2019, this article has been updated and expanded by additional contributors to reflect the current IT auditor career path.

An IT auditor evaluates an organization's technology, controls and information systems to identify risk, verify compliance and recommend improvements. As businesses rely more heavily on cloud platforms, automated workflows, artificial intelligence and connected systems, IT auditing continues to play an important role in cybersecurity, governance and risk management.

If you are considering an IT auditor career, understanding the day-to-day responsibilities, skills and certifications can help you decide whether the role fits your goals. This guide explains what an IT auditor does, what an IT audit involves and how professionals can build the knowledge needed for the job.

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What is an IT audit?

An IT audit is a structured review of an organization's information systems, technology processes and related controls. The goal is to determine whether systems protect information assets, support business objectives, operate effectively and meet applicable policies, standards, contractual requirements and regulations.

Depending on the scope, an IT audit may examine cybersecurity controls, access management, change management, data protection, business continuity, cloud services, third-party technology, system development practices and other areas. Auditors gather evidence, test controls, document findings and recommend ways to address gaps or reduce risk.

What is an IT auditor?

An IT auditor — also called an information systems auditor or IT audit professional — assesses how well an organization manages technology risk and controls. The role combines technical knowledge with audit, risk and business skills.

IT auditors review systems and processes, analyze evidence, identify control weaknesses and communicate findings to stakeholders. They may work as internal auditors within an organization, for an external audit or consulting firm, or in specialized risk, compliance and cybersecurity teams. Common industries include financial services, technology, healthcare, government and education.

What does an IT auditor do?

IT auditor responsibilities vary by organization and industry, but most roles involve planning audits, evaluating controls, testing evidence and reporting results. An IT auditor may:

• Assess IT risks and determine the scope and objectives of an audit.
• Review policies, procedures, system configurations and other documentation.
• Evaluate IT general controls and application controls, including access, change management and operational controls.
• Test whether controls are designed appropriately and operating as intended.
• Analyze system data, logs and audit evidence for exceptions, anomalies or control failures.
• Evaluate compliance with internal policies, contractual obligations, industry standards and relevant regulations.
• Review cybersecurity, business continuity, disaster recovery and third-party technology risks when they fall within the audit scope.
• Document findings, explain business impact and recommend practical corrective actions.
• Present audit results to IT leaders, executives, audit committees, external auditors or regulators.
• Follow up on remediation plans to verify that identified issues have been addressed.

For example, an IT auditor working in financial services may spend significant time evaluating controls that support financial reporting and regulatory compliance. In another organization, the same role may focus more heavily on cybersecurity, cloud governance, privacy, resilience or vendor risk. In either case, the auditor's job is to provide independent, evidence-based assurance about technology risk and controls.

What skills do IT auditors need?

Strong IT auditors combine technical expertise with analytical thinking and communication skills. Important IT auditor skills include:

• Knowledge of IT systems, networks, databases, cloud environments and common security controls.
• Understanding of audit concepts, risk assessment, governance and internal controls.
• Attention to detail when reviewing evidence and testing controls.
• Data analysis skills for identifying patterns, exceptions and unusual activity.
• Clear writing and presentation skills for explaining technical findings to nontechnical stakeholders.
• Curiosity and critical thinking to ask why a process works the way it does and where it could fail.
• Organization and project management skills for balancing multiple audits, deadlines and stakeholders.

Because IT auditing sits between technology and the business, successful auditors also need to understand how technical risks can affect operations, financial reporting, compliance and strategic goals.

What training and certifications can help an IT auditor?

There is no single required training path for every IT auditor job. Employers may look for education or experience in information technology, cybersecurity, accounting, audit, risk or a related field. Professional certifications can also help demonstrate specialized knowledge.

For professionals preparing for certification, instructor-led cybersecurity boot camps can provide focused training and exam preparation. The best option depends on your current experience and the type of IT audit work you want to pursue.

Certified Information Systems Auditor (CISA)

For many IT auditors, the Certified Information Systems Auditor (CISA) credential from ISACA is the most directly aligned certification. The current CISA exam covers five job-practice domains:

• Information System Auditing Process
• Governance and Management of IT
• Information Systems Acquisition, Development and Implementation
• Information Systems Operations and Business Resilience
• Protection of Information Assets

You can take the CISA exam before meeting the full experience requirement. To earn the CISA certification, ISACA requires at least five years of professional information systems auditing, control or security experience, subject to its current certification policies.

If CISA is part of your IT auditor career plan, explore the ISACA CISA Certification Training Boot Camp for focused exam preparation and auditing skills training.

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Certified Internal Auditor (CIA)

The Certified Internal Auditor (CIA) credential from The Institute of Internal Auditors (IIA) is a globally recognized internal audit certification. It can be useful for IT auditors who work within a broader internal audit function or want deeper knowledge of internal audit standards, risk and governance.

CIA eligibility depends on education and experience. Under current IIA requirements, candidates with a bachelor's degree generally need two years of qualifying internal audit experience, while candidates with a master's degree generally need one year. Relevant experience can include internal audit, risk management, compliance, external audit and internal control work.

Certified Information Systems Security Professional (CISSP)

The ISC2 Certified Information Systems Security Professional (CISSP) credential is broader than IT audit and is designed for experienced cybersecurity professionals. It may be valuable for IT auditors whose work includes security architecture, security operations, risk management or security assessment.

The CISSP exam covers eight domains, including security and risk management, asset security, security architecture and engineering, communication and network security, identity and access management, security assessment and testing, security operations, and software development security.

To earn the CISSP, candidates generally need five years of cumulative work experience in at least two of the eight domains. A qualifying post-secondary degree in a related field or an approved credential may satisfy up to one year of the experience requirement.

Professionals pursuing this path can review the ISC2 CISSP Certification Training Boot Camp for intensive certification preparation.

Current trends shaping IT auditing

IT auditing continues to evolve as organizations adopt new technologies and as technology becomes more deeply embedded in everyday business processes. Several trends are influencing what IT auditors need to understand and evaluate.

AI and automation

Artificial intelligence and automation are changing both the systems auditors review and the tools audit teams can use. IT auditors increasingly need to understand AI governance, data quality, access, model oversight, transparency and the controls surrounding automated decisions. Audit teams are also using analytics and AI-assisted workflows to review larger volumes of evidence and identify anomalies more efficiently.

Cloud and digital workflows

Cloud platforms, software-as-a-service tools and automated business workflows have blurred the line between traditional business audits and IT audits. Controls that once depended on manual processes may now be enforced through system configuration, integrations and automated logic. That makes technology knowledge relevant across a growing share of audit work.

Cybersecurity and resilience

Cybersecurity remains a major risk and audit priority. IT auditors may evaluate identity and access management, vulnerability and patch management, incident response, backup and recovery, security monitoring, data protection and other controls that support cyber resilience. The exact scope depends on the organization and audit plan.

Integrated auditing

Integrated auditing considers technology, financial and operational controls together instead of treating IT as a separate layer. This approach can help auditors understand how a technology control affects the end-to-end business process and identify risks that might be missed when audit scopes are separated too narrowly.

Is an IT auditor career right for you?

An IT auditor career can be a strong fit for people who enjoy technology, investigation, problem-solving and communicating with different parts of a business. The work requires more than checking compliance boxes: IT auditors help organizations understand whether their technology is controlled, resilient and aligned with business needs.

If you are interested in the field, start by building a foundation in IT, cybersecurity, risk and audit concepts, then compare job descriptions to the skills employers are seeking. Certifications such as CISA, CIA or CISSP can support different career paths depending on the type of IT auditing you want to do.

For a deeper look at the career path, see our article How to become an IT auditor.

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Sources

ISACA, CISA Exam Content Outline

The Institute of Internal Auditors, Certified Internal Auditor

ISC2, CISSP Experience Requirements

ISACA, IT Audit Framework 5th Edition update