Summary: | 碩士 === 國立政治大學 === 會計研究所 === 99 === Information technology (IT) provides the opportunities for business growth and development, it’s usage also faces various threats such as disruption, deception, theft, and fraud. The proliferation and complexity of IT brings many organizational risks and IT-related risks. In order to assess and manage these risks, internal auditors need to utilize information technology when performing internal audit activities and should also include IT audit in their audit plans to ensure the effectiveness of the firm’s IT controls.
This study examines IT usage and the performance of IT audit by the internal audit departments of Taiwan public firms. Our empirical results show that over 70 percent of the internal audit departments use computer aided audit techniques (CAATs) when performing their internal audit activities. We also find that over 90 percent of the internal audit departments have included IT audit in their annual audit plans. In addition, The IT sophistication of a firm is significantly and positively associated with the IT usage by its internal audit department. That is, the internal auditors facing a complex IT environment tend to use more IT when performing their audit activities.
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