In September 2022, Optus has suffered a major data breach, with the personal Information of a...
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In September 2022, Optus has suffered a major data breach, with the personal Information of a substantial number of customers stolen including names, dates of birth, addresses, and contact details. For some customers, information stolen included physical addresses and identification document numbers such as driving licence or passport numbers. In a statement. Optus said payment details and account passwords have not been compromised, and that services, including mobile phones and home internet, were not affected. The company also insisted voice calls had not been compromised, and that Optus services remained safe to use and operate. Hackers accessed the sensitive information by breaking through the company's firewall. The Australian Cyber Security Centre is working with Optus to lock down its systems, secure any data against further breaches, and trace the attackers. The Australian Federal Police and the Office of the Australian Information Commissioner have also been notified. (4a) The five principles of the Trust Services Framework are used to assess the reliability of a company's information systems. Describe the five (5) components of the framework and discuss how it might help enhance information integrity and th cope with the problem indicated in the incident of Optus. (5 x1=5 marks) (4b) In the Optus data breach, the article above notes that "Hackers accessed the sensitive information by breaking through the company's firewall. Based on this information and referring to the Trust Services Framework, Identify and explain the principle (s) that failed the most? (2 marks) (4c) An internal auditor examined a randomly generated monthly transactions of the payroll department of a large retail company. Among other things, the auditor identified the following errors/data issues: 1. Employee working in the payroll department entered one employee's hours worked 400 instead of 40 hours. And in another case, the payroll department processed 250 hours for an employee instead of just 25 hours. 2. A recently appointed payroll employee was under pressure to finish off a large batch of payments. In several of the amounts that had to be entered, the employee entered the letter "I" instead of the number "1". 3. The same employee submitted several payroll entries where data entered into the hours-worked field of the payroll system was negative. dentify and briefly explain the application controls that would best mitigate the errors above. (3 marks) In September 2022, Optus has suffered a major data breach, with the personal Information of a substantial number of customers stolen including names, dates of birth, addresses, and contact details. For some customers, information stolen included physical addresses and identification document numbers such as driving licence or passport numbers. In a statement. Optus said payment details and account passwords have not been compromised, and that services, including mobile phones and home internet, were not affected. The company also insisted voice calls had not been compromised, and that Optus services remained safe to use and operate. Hackers accessed the sensitive information by breaking through the company's firewall. The Australian Cyber Security Centre is working with Optus to lock down its systems, secure any data against further breaches, and trace the attackers. The Australian Federal Police and the Office of the Australian Information Commissioner have also been notified. (4a) The five principles of the Trust Services Framework are used to assess the reliability of a company's information systems. Describe the five (5) components of the framework and discuss how it might help enhance information integrity and th cope with the problem indicated in the incident of Optus. (5 x1=5 marks) (4b) In the Optus data breach, the article above notes that "Hackers accessed the sensitive information by breaking through the company's firewall. Based on this information and referring to the Trust Services Framework, Identify and explain the principle (s) that failed the most? (2 marks) (4c) An internal auditor examined a randomly generated monthly transactions of the payroll department of a large retail company. Among other things, the auditor identified the following errors/data issues: 1. Employee working in the payroll department entered one employee's hours worked 400 instead of 40 hours. And in another case, the payroll department processed 250 hours for an employee instead of just 25 hours. 2. A recently appointed payroll employee was under pressure to finish off a large batch of payments. In several of the amounts that had to be entered, the employee entered the letter "I" instead of the number "1". 3. The same employee submitted several payroll entries where data entered into the hours-worked field of the payroll system was negative. dentify and briefly explain the application controls that would best mitigate the errors above. (3 marks)
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4a The five components of the Trust Services Framework used to assess the reliability of a companys information systems are Security Security involves protecting information systems from unauthorized ... View the full answer
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Auditing and Assurance services an integrated approach
ISBN: 978-0132575959
14th Edition
Authors: Alvin a. arens, Randal j. elder, Mark s. Beasley
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