The Importance of Auditing Artificial Intelligence: A Governance, Risk, and Assurance Perspective

Artificial intelligence (AI) has moved from experimental deployment to embedded infrastructure across finance, operations, healthcare, retail, and public administration. As organizations delegate consequential decisions — credit scoring, fraud detection, hiring, medical triage, dynamic pricing, and regulatory reporting — to machine learning models and generative AI systems, the assurance function faces a widening gap between what these systems do and what boards, regulators, and stakeholders can verify. This paper argues that auditing AI is no longer a specialized niche but a core extension of internal audit's mandate to provide independent, objective assurance over governance, risk management, and control. It examines the drivers behind AI audit — financial, regulatory, ethical, and reputational — surveys the emerging standards landscape (IIA's Global Technology Audit Guide series, ISO/IEC 42001, NIST AI RMF, and the EU AI Act), and proposes a practical audit approach spanning governance, data, model, and monitoring layers. The paper concludes that organizations which fail to build AI-specific audit capability expose themselves to undetected model drift, algorithmic bias, regulatory non-compliance, and erosion of stakeholder trust — risks that are financially and reputationally material.