Um estudo sobre a atuação da auditoria interna na detecção de fraudes nas empresas do setor privado no estado de São Paulo

Abstract

This dissertation aims at verifying the effectiveness of internal audit in the processes of detection of frauds committed against companies. The study of the subject fraud has become opportune nowadays, once many financial and accounting scandals have been discussed due to of the impact caused in the world financial market. The research begins by the study of how the audit profession appeared in the world, verifying the evolution of internal audit in Brazil and demonstrating data about the professionals belonging to this field in the mentioned country. Then, the concepts that involve the task of detecting frauds, which are internal control, fraud and its different types and error, besides the own concept of internal audit, are analyzed. The audit procedures help data analysis and guarantee the trustworthiness of the tests applied by the auditor, once technology helps them to go hand in hand with the computerization of the audit process. In order to corroborate the bibliographical survey a field work with the purpose of ratifying the conclusions found in the bibliography was made, thus, proving the formulated hypothesis. We researched private sector companies located in the state of São Paulo and considered big, based on the income tax criterion in Brazil.The answers to this research were tabulated and confirmed some conclusions in relation to the performance of internal audit in fraud atmosphere. The conclusions confirm that internal audit is effective in the detection of many types of frauds against companies, since the professionals make use of audit procedures together with the computer programs available in the market or developed by audit companies.