Importantes mudanças foram implementadas por órgãos normatizadores do mercado de capitais, no Brasil e nos Estados Unidos, relativas às atividades de controle e fiscalização na elaboração e divulgação de demonstrações contábeis. A percepção da necessidade dessas mudanças decorreu, em grande parte, das fraudes corporativas que se utilizaram de instrumentos contábeis, revelados a partir da segunda metade da década de 1990 nos dois países. Nos Estados Unidos, mais precisamente, nos anos de 2001 e 2002. Este trabalho foi desenvolvido com o objetivo de analisar, comparativamente, as principais normas publicadas no Brasil e nos Estados Unidos entre 1998 e 2004, que buscaram o aprimoramento da governança corporativa através da estruturação de controles internos e de fiscalização sobre a elaboração e divulgação de demonstrações contábeis em setores empresariais regulamentados. As normas estudadas foram: a Lei Sarbanes-Oxley, sancionada nos Estados Unidos em 2002, as Resoluções 2554 e 3198 do Conselho Monetário Nacional - CMN, editadas em 1998 e 2004, respectivamente, a Resolução 118 de 2004 do Conselho Nacional de Seguros Privados - CNSP e as Circulares 249 e 280 de 2004 da Superintendência de Seguros Privados - SUSEP. Para a realização da análise comparativa foram coletadas opiniões, através da aplicação de questionário junto a participantes especialistas ativos das indústrias bancária, de seguros e das companhias abertas brasileiras, sobre a eficácia e suficiência das normas estudadas e foram levantados artigos acadêmicos, teses, dissertações e outros trabalhos que já tenham se proposto a analisar as referidas normas. As principais conclusões obtidas revelam que as normas estudadas são em geral eficazes e eficientes e abordaram aspectos importantes para a redução dos riscos de elaboração e divulgação de relatórios financeiros inadequados; que as medidas determinadas na Seção 404 da Lei Sarbanes-Oxley revelam pouca eficácia para a redução daqueles riscos e a custos muito elevados, principalmente para pequenas empresas; que, no Brasil, é necessário que os órgãos normatizadores das indústrias bancária, de seguros e das companhias abertas, bem como da profissão de contabilidade e auditoria desempenhem suas atividades de fiscalização e monitoramento de forma mais ampla e ativa. / Stock market regulatory agencies in Brazil and the United States have effected major changes in the control and inspection of the preparation and disclosure of financial statements. The need for these changes was made mostly evident when corporate frauds perpetrated using accounting tools started to be disclosed in the second half of the 1990s in both countries. In the United States more precisely in 2001 and 2002. The purpose of this thesis was to compare the main regulations enacted in Brazil and the United States between 1998 and 2004, which sought to improve corporate governance by structuring internal and inspection controls over the preparation and disclosure of financial statements in regulated industries. The following regulations were studied: Sarbanes-Oxley Act approved in the United States in 2002, Resolutions No. 2554 and 3198 passed by the National Monetary Council (CMN) in 1998 and 2004, respectively, Resolution No. 118 of 2004 of the National Council of Private Insurance (CNSP) and Circular Letters No. 249 and 280 issued by the Superintendence of Private Insurance (SUSEP) in 2004. For a comparative analysis, opinions were collected by sending out questionnaires to experts from the banking and insurance industries and Brazilian public companies on the effectiveness and sufficiency of the regulation studied. Also, academic papers, dissertations, theses and other works that analyzed those regulations were surveyed. The main conclusions show that the studied regulations are in general effective and efficient and address major issues involved in reducing the risks of preparing and disclosing inadequate financial statements; that the provisions set forth in Section 404 of the Sarbanes- Oxley Act have little effectiveness in reducing those risks and the costs are very high, specially for small companies; that in Brazil regulatory agencies of the banking and insurance industries and public companies, as well accountants? and auditors? professional bodies, must perform their inspection and monitoring activities more actively and widely.

Um dos objetivos mais importantes de qualquer sistema de detecção de fraudes, independente de seu domínio de operação, é detectar o maior número de fraudes com menor número de alarmes falsos, também denominados de falsos positivos. A existência de falsos positivos é um fato inerente a qualquer sistema de detecção fraudes. O primeiro passo para alcançar esse objetivo é identificar os atributos que podem ser usados para diferenciar atividades legítimas das fraudulentas. O próximo passo consiste em identificar um método para cada atributo escolhido para efetuar essa distinção. A escolha adequada dos atributos e dos métodos correspondentes determina em grande parte o desempenho de um detector de fraudes tanto em termos da relação entre o número de fraudes detectadas e o número de falsos positivos, quanto em termos de tempo de processamento. O desafio desta escolha é maior ao se tratar de um detector de fraudes em tempo real, isto é, fazer a detecção antes que a fraude seja concretizada. O objetivo deste trabalho é apresentar a proposta de uma arquitetura de um sistema de detecção de fraudes em tempo real em transações bancárias via Internet, baseando-se em observações do comportamento local e global de usuários. O método estatístico baseado em análise diferencial é usado para obter a evidência local de uma fraude. Neste caso, a evidência de fraude é baseada na diferença entre os perfis de comportamento atual e histórico do usuário. A evidência local de fraude é fortalecida ou enfraquecida pelo comportamento global do usuário. Neste caso, a evidência de fraude é baseada no número de acessos efetuados em contas diferentes feitos pelo dispositivo utilizado pelo usuário, e por um valor probabilístico que varia com o tempo. A teoria matemática de evidências de Dempster-Shafer é utilizada para combinar estas evidências e obter um escore final. Este escore é então comparado com um limiar para disparar um alarme indicando a fraude. A principal inovação e contribuição deste trabalho estão na definição e exploração dos métodos de detecção baseados em atributos globais que são de natureza específica do domínio de transações financeiras. Os resultados da avaliação utilizando uma base de dados com registros de transações correspondentes a perfis reais de uso demonstraram que a integração de um detector baseado em atributos globais fez aumentar a capacidade do sistema de detectar fraudes em 20%. / One of the most important goals of any fraud detection system, whichever is the domain where it characterizes the possibility for fraud, is to detect the largest number of frauds with fewer false alarms, also denominated false positives. The existence of false positives is a fact inherent to any fraud detection system. The first step in achieving this goal is to identify the attributes that can be used to differentiate between legitimate and fraudulent activities. The next step is to identify a method for each attribute chosen to make this distinction. The proper choice of the attributes and corresponding methods largely determines the performance of a fraud detector, not only in terms of the rate between the number of detected frauds and the number of false positives, but in terms of processing time. The challenge of this choice is higher when dealing with fraud detection in real time, that is, making the detection before the fraud is carried out. The aim of this work is to present the proposal of an architecture of a real time fraud detection system for Internet banking transactions, based on local and global observations of users behavior. The statistical method based on differential analysis is used to obtain the local evidence of fraud. In this case, the evidence of fraud is based on the difference between the current and historical behavior of the user. The frauds local evidence is strengthened or weakened by the users global behavior. In this case, the evidence of fraud is based on the number of accesses performed on different accounts made by the device used by the user and by a probability value that varies over time. The Dempster-Shafers mathematical theory of evidence is applied in order to combine these evidences for final suspicion score of fraud. This score is then compared with a threshold to trigger an alarm indicating the fraud. The main innovation and contribution of this work are the definition and exploration of detection methods based on global attributes which are domain specific of financial transactions. The evaluation results using a database with records of transactions corresponding to actual usage profiles showed that the integration of a detector based on global attributes improves the system capacity to detect frauds in 20%.

Um dos objetivos mais importantes de qualquer sistema de detecção de fraudes, independente de seu domínio de operação, é detectar o maior número de fraudes com menor número de alarmes falsos, também denominados de falsos positivos. A existência de falsos positivos é um fato inerente a qualquer sistema de detecção fraudes. O primeiro passo para alcançar esse objetivo é identificar os atributos que podem ser usados para diferenciar atividades legítimas das fraudulentas. O próximo passo consiste em identificar um método para cada atributo escolhido para efetuar essa distinção. A escolha adequada dos atributos e dos métodos correspondentes determina em grande parte o desempenho de um detector de fraudes tanto em termos da relação entre o número de fraudes detectadas e o número de falsos positivos, quanto em termos de tempo de processamento. O desafio desta escolha é maior ao se tratar de um detector de fraudes em tempo real, isto é, fazer a detecção antes que a fraude seja concretizada. O objetivo deste trabalho é apresentar a proposta de uma arquitetura de um sistema de detecção de fraudes em tempo real em transações bancárias via Internet, baseando-se em observações do comportamento local e global de usuários. O método estatístico baseado em análise diferencial é usado para obter a evidência local de uma fraude. Neste caso, a evidência de fraude é baseada na diferença entre os perfis de comportamento atual e histórico do usuário. A evidência local de fraude é fortalecida ou enfraquecida pelo comportamento global do usuário. Neste caso, a evidência de fraude é baseada no número de acessos efetuados em contas diferentes feitos pelo dispositivo utilizado pelo usuário, e por um valor probabilístico que varia com o tempo. A teoria matemática de evidências de Dempster-Shafer é utilizada para combinar estas evidências e obter um escore final. Este escore é então comparado com um limiar para disparar um alarme indicando a fraude. A principal inovação e contribuição deste trabalho estão na definição e exploração dos métodos de detecção baseados em atributos globais que são de natureza específica do domínio de transações financeiras. Os resultados da avaliação utilizando uma base de dados com registros de transações correspondentes a perfis reais de uso demonstraram que a integração de um detector baseado em atributos globais fez aumentar a capacidade do sistema de detectar fraudes em 20%. / One of the most important goals of any fraud detection system, whichever is the domain where it characterizes the possibility for fraud, is to detect the largest number of frauds with fewer false alarms, also denominated false positives. The existence of false positives is a fact inherent to any fraud detection system. The first step in achieving this goal is to identify the attributes that can be used to differentiate between legitimate and fraudulent activities. The next step is to identify a method for each attribute chosen to make this distinction. The proper choice of the attributes and corresponding methods largely determines the performance of a fraud detector, not only in terms of the rate between the number of detected frauds and the number of false positives, but in terms of processing time. The challenge of this choice is higher when dealing with fraud detection in real time, that is, making the detection before the fraud is carried out. The aim of this work is to present the proposal of an architecture of a real time fraud detection system for Internet banking transactions, based on local and global observations of users behavior. The statistical method based on differential analysis is used to obtain the local evidence of fraud. In this case, the evidence of fraud is based on the difference between the current and historical behavior of the user. The frauds local evidence is strengthened or weakened by the users global behavior. In this case, the evidence of fraud is based on the number of accesses performed on different accounts made by the device used by the user and by a probability value that varies over time. The Dempster-Shafers mathematical theory of evidence is applied in order to combine these evidences for final suspicion score of fraud. This score is then compared with a threshold to trigger an alarm indicating the fraud. The main innovation and contribution of this work are the definition and exploration of detection methods based on global attributes which are domain specific of financial transactions. The evaluation results using a database with records of transactions corresponding to actual usage profiles showed that the integration of a detector based on global attributes improves the system capacity to detect frauds in 20%.

The world economy loses an estimated $3.5 trillion annually due to fraud. A weakened economy leads to additional hardships for individuals, families, and organizations. General strain theory (GST) posits that certain strains lead to negative emotional responses, and the result is delinquent behavior. The purpose of this research was to analyze the relationship between strain and occupational fraud through the theoretical framework of GST. The research questions addressed (a) occupational frauds as measured by strain levels of perpetrators, (b) the relationship between strain scores and the different occupational fraud types, and (c) the significance of the relationship between fraud motivation and each of the occupational fraud types. A quantitative, cross-sectional study using secondary data from the ACFE Report to the Nations on Occupational Fraud and Abuse database, was conducted to examine the relationship between strain, negative emotionality, and occupational fraud crimes. To examine this relationship, a sample of 2,910 cases were tested using nominal regression, logistic regression, and Pearson correlation. The results indicated that strain is significantly related to asset misappropriation and financial statement frauds. The results also showed that work-related motivation is significantly related to financial statement frauds. Scholars and practitioners should focus on agendas related to strain, work-related motivation, and financial statement frauds. Fewer fraud losses will positively impact society through increased employment opportunities, additional tax revenues for all levels of government, and increased cash flows for investors.

The concept of sustainability has become imperative for any organisation in order to survive and prosper in the long term. As such, the management of fraud risk has become an important component for organisations in order to achieve this objective. The purpose of this study was to explore the management of fraud risk within the South African private hospital sector. The study endeavoured to ascertain how private hospitals in South Africa manage fraud risk. In this regard, problem areas in the management of fraud risk were identified, and recommendations are provided in order to improve the management of fraud risk in the South African private hospital sector. Primary data was collected by means of survey research, which involved management staff at head office level and at hospital level, as these two groups were identified to have the required expertise and experience with regard to risk management procedures and practices within South African private hospitals. The findings suggested that South African private hospitals could improve their current risk management practices, in particular with regard to fraud risk. By implementing the recommendations provided by the study, private hospitals will be able to manage fraud risk more effectively. These recommendations will not only be beneficial to private hospitals, but will also have a positive effect on numerous external stakeholders, because the effective management of fraud risk could lead to considerable cost savings. The public hospital sector of South Africa would equally find the research findings and recommendations of value because it could also be applied to their fraud risk management practices. / Business Management / M. Com. (Business Management)

<p><strong>Problem: </strong>Vilka åtgärder använder sig små företag inom kontantbranschen av för att förhindra och upptäcka bedrägerier? Hur ser företagen och revisorerna på ansvaret för att upptäcka bedrägerier utförda av anställda och skiljer sig företagens förväntningar från revisorns skyldigheter?</p><p><strong>Syfte: </strong>Syftet med uppsatsen är att undersöka hur små företag arbetar för att förhindra och upptäcka bedrägerier. Syftet är även att studera om det finns ett förväntningsgap mellan företagsledningen och revisorerna gällande ansvaret att upptäcka interna bedrägerier utförda av personal.                                                                                            </p><p><strong>Metod: </strong>Denna rapport grundar sig på av en litteratur- och en empiristudie.  Empiristudien genomfördes med hjälp av totalt sju intervjuer, fyra med företag inom kontantbranschen samt tre revisorer. Även kompletteringsfrågor skickades till tre av respondenterna. Litteraturstudien består av böcker och artiklar som erhölls från databaser och biblioteket på Mälardalens högskola samt Västerås stadsbibliotek. <strong> </strong></p><p><strong>Slutsats: </strong>Intern kontrollsystemen är en av de viktigaste förebyggande åtgärderna mot bedrägeri. Samtliga företag i studien använder sig av någon form av kontroll för att upptäcka och förebygga bedrägerier utförda av anställda. Ofta används avstämningar av inköp, lager och försäljning samt rutiner för rättelser och returer, men den vanligaste kontrollen bland företagen utgjordes av företagsledarens aktiva roll i verksamheten. Företagsrespondenterna var överens om att det inte är revisorns skyldighet att upptäcka bedrägerier utförda av anställda, utan de ansåg att ansvaret att upptäcka dessa brott ligger på företaget. Denna studie visar att det inte finns ett förväntningsgap mellan företags- och revisorsrespondenterna angående ansvaret att upptäcka interna bedrägerier.</p> / <p><strong>Research </strong><strong>issue: </strong>What measures against fraud does small businesses in the cash  industry use to discover and prevent frauds?<strong> </strong>How<strong> </strong>do the businesses and the auditors look at the responsibility to discover frauds performed by employees and are there any differences between the businesses expectations and the auditors’ obligations?</p><p><strong>Purpose: </strong>The purpose with this thesis is to examine how small businesses are working to prevent and detect frauds. The purpose is also to examine if there is an expectation gap between managers and auditors regarding the responsibility to detect internal frauds preformed by employees.</p><p><strong>Method: </strong>One literature and one empirical study were made. The empirical data collection was carried out by means of seven interviews, four of them with companies within the cash industry and three of them with auditors. Complementary questions were sent to three of the respondents. The literature consists of books and articles. They were found in databases, the library at Mälardalen University and Västerås Municipal library. <strong> </strong></p><p><strong>Conclusion: </strong>Internal control systems are one of the most important preventive measures against fraud. The businesses in this study are using some kinds of controls to detect and prevent frauds performed by employees. Often tuning of purchase, storage and sales and routines for corrections and returns are used but the most common control among the businesses consisted of the managers’ active role in the operation. All the business respondents believe that it is not the auditors’ responsibility to detect fraud performed by employees but rather believed that the responsibility to detect these kinds of crimes lies with the company. This study shows that there is no existing expectation gap between the business respondents and the auditor respondents regarding the responsibility of detecting internal fraud.</p>

Problem: Vilka åtgärder använder sig små företag inom kontantbranschen av för att förhindra och upptäcka bedrägerier? Hur ser företagen och revisorerna på ansvaret för att upptäcka bedrägerier utförda av anställda och skiljer sig företagens förväntningar från revisorns skyldigheter? Syfte: Syftet med uppsatsen är att undersöka hur små företag arbetar för att förhindra och upptäcka bedrägerier. Syftet är även att studera om det finns ett förväntningsgap mellan företagsledningen och revisorerna gällande ansvaret att upptäcka interna bedrägerier utförda av personal.                                                                                             Metod: Denna rapport grundar sig på av en litteratur- och en empiristudie.  Empiristudien genomfördes med hjälp av totalt sju intervjuer, fyra med företag inom kontantbranschen samt tre revisorer. Även kompletteringsfrågor skickades till tre av respondenterna. Litteraturstudien består av böcker och artiklar som erhölls från databaser och biblioteket på Mälardalens högskola samt Västerås stadsbibliotek.   Slutsats: Intern kontrollsystemen är en av de viktigaste förebyggande åtgärderna mot bedrägeri. Samtliga företag i studien använder sig av någon form av kontroll för att upptäcka och förebygga bedrägerier utförda av anställda. Ofta används avstämningar av inköp, lager och försäljning samt rutiner för rättelser och returer, men den vanligaste kontrollen bland företagen utgjordes av företagsledarens aktiva roll i verksamheten. Företagsrespondenterna var överens om att det inte är revisorns skyldighet att upptäcka bedrägerier utförda av anställda, utan de ansåg att ansvaret att upptäcka dessa brott ligger på företaget. Denna studie visar att det inte finns ett förväntningsgap mellan företags- och revisorsrespondenterna angående ansvaret att upptäcka interna bedrägerier. / Research issue: What measures against fraud does small businesses in the cash  industry use to discover and prevent frauds? How do the businesses and the auditors look at the responsibility to discover frauds performed by employees and are there any differences between the businesses expectations and the auditors’ obligations? Purpose: The purpose with this thesis is to examine how small businesses are working to prevent and detect frauds. The purpose is also to examine if there is an expectation gap between managers and auditors regarding the responsibility to detect internal frauds preformed by employees. Method: One literature and one empirical study were made. The empirical data collection was carried out by means of seven interviews, four of them with companies within the cash industry and three of them with auditors. Complementary questions were sent to three of the respondents. The literature consists of books and articles. They were found in databases, the library at Mälardalen University and Västerås Municipal library.   Conclusion: Internal control systems are one of the most important preventive measures against fraud. The businesses in this study are using some kinds of controls to detect and prevent frauds performed by employees. Often tuning of purchase, storage and sales and routines for corrections and returns are used but the most common control among the businesses consisted of the managers’ active role in the operation. All the business respondents believe that it is not the auditors’ responsibility to detect fraud performed by employees but rather believed that the responsibility to detect these kinds of crimes lies with the company. This study shows that there is no existing expectation gap between the business respondents and the auditor respondents regarding the responsibility of detecting internal fraud.

Univ., Diss.--Frankfurt am Main, 2006. / Literaturverz. S. 15 - 39.

When economic crime is discovered it tends to result in solutions that strengthen the audit. In 2010 a law was adopted which reduced the influence of the audit. The reform gave the smallest companies the opportunity to actively refrain external audit. That can be seen as remarkable as the auditors are the primary control organ of smaller companies. The reform was introduced to simplify the administrative burden and reduce its costs. This qualitative study aims to explain the factors that have been affected by the abolition of auditing based on the auditors' perspective. By answering the research questions: What are the effects caused by the elimination of auditing requirements for smaller companies from the auditor's perspective? What does the financial crime look like in these companies and what factors affect the auditors' decision-making regarding eco-crime? What affects individuals' inclination to commit financial crime? The aim of this study is to chart the factors that have been affected by the elimination of auditing for small companies from the perspective of auditors. Furthermore, the study aims to increase the understanding of the interplay between company stakeholders, small companies and auditors, as there is currently no qualitative research in this area. The research questions are answered using collected secondary data and qualitative interviews. The conclusion of the study suggests that the abolition meant that business leaders without the necessary skills now produce the annual report and the current accounts. Further effects that have arisen are that authorities have increased workload due to both poor annual reports and that audit work has to some extent been shifted from auditors to government agencies. The bolition has also resulted in an increased incidence of economic crime. The factors that affect he auditors' inclination to report criminal acts are primarily; transaction size, the individual's wareness of the crime, the motivation behind it, the customer's inclination to remedy the act and the parties concerned by the action. The study indicates that there is a correlation between the existence of financial crime and high frequency of cash handling. The factors that influence an individual to commit crimes are corporate culture. In the companies where employees commit financial crime, mainly lack of internal control is seen as the reason.

Submitted by Jhonata Ramos (jhonata.emerick@gmail.com) on 2015-09-18T16:47:09Z No. of bitstreams: 1 dissertacao_final.pdf: 820128 bytes, checksum: b7fc5ca71a3debaf99da902b518ff748 (MD5) / Approved for entry into archive by Renata de Souza Nascimento (renata.souza@fgv.br) on 2015-09-18T17:17:43Z (GMT) No. of bitstreams: 1 dissertacao_final.pdf: 820128 bytes, checksum: b7fc5ca71a3debaf99da902b518ff748 (MD5) / Made available in DSpace on 2015-09-18T21:34:00Z (GMT). No. of bitstreams: 1 dissertacao_final.pdf: 820128 bytes, checksum: b7fc5ca71a3debaf99da902b518ff748 (MD5) Previous issue date: 2015-08-21 / For fraud detection models are used to identify whether a transaction is legitimate or fraudulent based on registration and transactional information. The proposal on technical study presented in this thesis consists in the Bayesian Networks (BN); their results were compared to logistic regression technique (RL), widely used by the market. Bayesian classifiers were evaluated, with the Naive Bayes structure. The structures of Bayesian networks were obtained from actual data, provided by a financial institution. The database was divided into samples development and validation by cross validation ten partitions. Naive Bayes classifiers were chosen due to the simplicity and efficiency. The model performance was evaluated taking into account the confusion matrix and the area under the ROC curve. The analyzes of performance models revealed slightly higher than the logistic regression compared to bayesian classifiers. Logistic regression was chosen as the most appropriate model for performed better in predicting fraudulent operations, compared to the confusion matrix. Based on area under the ROC curve, logistic regression demonstrated greater ability to discriminate the operations being classified correctly, those that are not. / Modelos para detecção de fraude são utilizados para identificar se uma transação é legítima ou fraudulenta com base em informações cadastrais e transacionais. A técnica proposta no estudo apresentado, nesta dissertação, consiste na de Redes Bayesianas (RB); seus resultados foram comparados à técnica de Regressão Logística (RL), amplamente utilizada pelo mercado. As Redes Bayesianas avaliadas foram os classificadores bayesianos, com a estrutura Naive Bayes. As estruturas das redes bayesianas foram obtidas a partir de dados reais, fornecidos por uma instituição financeira. A base de dados foi separada em amostras de desenvolvimento e validação por cross validation com dez partições. Naive Bayes foram os classificadores escolhidos devido à simplicidade e a sua eficiência. O desempenho do modelo foi avaliado levando-se em conta a matriz de confusão e a área abaixo da curva ROC. As análises dos modelos revelaram desempenho, levemente, superior da regressão logística quando comparado aos classificadores bayesianos. A regressão logística foi escolhida como modelo mais adequado por ter apresentado melhor desempenho na previsão das operações fraudulentas, em relação à matriz de confusão. Baseada na área abaixo da curva ROC, a regressão logística demonstrou maior habilidade em discriminar as operações que estão sendo classificadas corretamente, daquelas que não estão.