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Copyright © Pearson Education Limited 2015. Computer Fraud Chapter 5 5-1.

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Presentation on theme: "Copyright © Pearson Education Limited 2015. Computer Fraud Chapter 5 5-1."— Presentation transcript:

1 Copyright © Pearson Education Limited Computer Fraud Chapter 5 5-1

2 Copyright © Pearson Education Limited Learning Objectives Explain the threats faced by modern information systems. Define fraud and describe both the different types of fraud and the process one follows to perpetuate a fraud. Discuss who perpetrates fraud and why it occurs, including the pressures, opportunities, and rationalizations that are present in most frauds. Define computer fraud and discuss the different computer fraud classifications. Explain how to prevent and detect computer fraud and abuse. 5-2

3 Copyright © Pearson Education Limited Threats to AIS Table 5-1 Natural and Political disasters Software errors and equipment malfunctions Unintentional acts Intentional acts 5-3 Integrative case on page 148

4 Copyright © Pearson Education Limited AIS Threats Pages

5 Copyright © Pearson Education Limited Focus 5-1 Electronic Warfare Stuxnet 60 Minutes 5-5

6 Copyright © Pearson Education Limited Fraud Any means a person uses to gain an unfair advantage over another person; includes: ▫A false statement, representation, or disclosure ▫A material fact, which induces a victim to act ▫An intent to deceive ▫Victim relied on the misrepresentation ▫Injury or loss was suffered by the victim The ACME estimates ….. Page 152 Fraud is white collar crime 5-6

7 Copyright © Pearson Education Limited Two Categories of Fraud Misappropriation of assets page 153 ▫Theft of company assets which can include physical assets (e.g., cash, inventory) and digital assets (e.g., intellectual property such as protected trade secrets, customer data) Fraudulent financial reporting page 154 ▫“cooking the books” (e.g.,booking fictitious revenue, overstating assets, etc.) 5-7

8 Copyright © Pearson Education Limited Conditions for Fraud These three conditions must be present for fraud to occur: Pressure ▫Employee  Financial  Lifestyle  Emotional ▫Financial Statement  Financial  Management  Industry conditions Opportunity to: ▫Commit ▫Conceal ▫Convert to personal gain Rationalize ▫Justify behavior ▫Attitude that rules don’t apply ▫Lack personal integrity 5-8

9 Copyright © Pearson Education Limited Fraud Triangle 5-9

10 Copyright © Pearson Education Limited Computer Fraud If a computer is used to commit fraud it is called computer fraud. See “The rise in computer fraud” in page 160; Cyber sleuths in page 161 Computer fraud is classified as: ▫Input ▫Processor ▫Computer instruction ▫Data ▫Output 5-10

11 Copyright © Pearson Education Limited Preventing and Detecting Fraud 1. Make Fraud Less Likely to Occur OrganizationalSystems Create a culture of integrity Adopt structure that minimizes fraud, create governance (e.g., Board of Directors) Assign authority for business objectives and hold them accountable for achieving those objectives, effective supervision and monitoring of employees Communicate policies Develop security policies to guide and design specific control procedures Implement change management controls and project development acquisition controls 5-11

12 Copyright © Pearson Education Limited Preventing and Detecting Fraud 2. Make It Difficulty to Commit OrganizationalSystems Develop strong internal controls Segregate accounting functions Use properly designed forms Require independent checks and reconciliations of data Restrict access System authentication Implement computer controls over input, processing, storage and output of data Use encryption Fix software bugs and update systems regularly Destroy hard drives when disposing of computers 5-12

13 Copyright © Pearson Education Limited Preventing and Detecting Fraud 3. Improve Detection OrganizationalSystems Assess fraud risk External and internal audits Fraud hotline Audit trail of transactions through the system Install fraud detection software Monitor system activities (user and error logs, intrusion detection) 5-13

14 Copyright © Pearson Education Limited Preventing and Detecting Fraud 4. Reduce Fraud Losses OrganizationalSystems Insurance Business continuity and disaster recovery plan Store backup copies of program and data files in secure, off-site location Monitor system activity 5-14

15 Copyright © Pearson Education Limited Key Terms Sabotage Cookie Fraud White-collar criminals Corruption Investment fraud Misappropriation of assets Fraudulent financial reporting Pressure Opportunity rationalization Lapping Check kiting Computer fraud 5-15


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