IIA IIA-CIA-Part3 - Business Knowledge for Internal Auditing

To ensure security when employees use their own smart devices to access organizational applications, the best approach is to allow only pre-approved devices that meet the organization’s security standards.

Device Security & Compliance: Approved devices are verified for security measures like encryption, mobile device management (MDM), and antivirus protection.

Risk Management: Restricting access to pre-approved devices reduces the risk of malware, unauthorized access, and vulnerabilities.

IT Control & Monitoring: IT can enforce security updates, compliance policies, and access control mechanisms on pre-approved devices.

Option A (Using a jailbroken or rooted smart device feature): Jailbroken or rooted devices remove security protections and create severe security vulnerabilities.

Option C (Obtaining written assurance from the employee that security policies and procedures are followed): Written assurances alone are not a security measure; technical controls must be enforced.

Option D (Introducing a security question known only by the employee): Security questions are weak authentication measures and do not verify the legitimacy of a device.

IIA's GTAG on Information Security Management stresses the importance of device security and requiring IT-approved devices.

NIST Special Publication 800-124 (referenced in IIA’s IT Audit Guidance) highlights best practices for securing mobile devices in an enterprise setting, recommending pre-approved devices.

Why Option B is Correct:Why Other Options Are Incorrect:IIA References:Thus, the most appropriate answer is B. Using only smart devices previously approved by the organization.

When executive compensation is tied to financial results, there is a strong incentive to manipulate financial reporting or focus solely on short-term performance at the expense of stakeholders’ interests.

Potential for Unethical Behavior:

Executives may prioritize profit-driven decisions (e.g., cost-cutting, aggressive revenue recognition) over long-term sustainability.

As per IIA Standard 2110 – Governance, incentive structures should align with ethical business practices and stakeholder interests.

Increased Risk of Fraud and Misrepresentation:

The Committee of Sponsoring Organizations of the Treadway Commission (COSO) Fraud Risk Management Guide highlights how executive incentives can lead to financial statement manipulation.

This could result in actions like aggressive revenue recognition, improper expense deferrals, or overstating earnings to boost compensation.

Misalignment with Stakeholder Interests:

Employees, customers, and investors suffer if executive compensation encourages short-term gains over long-term stability.

IIA GTAG 3: Continuous Auditing supports monitoring financial reporting risks to detect such inconsistencies.

A. The organization reports inappropriate estimates and accruals due to poor accounting controls. (Incorrect)

Reason: While poor controls can contribute to misstatements, the root cause in this scenario is compensation structure, not control weakness.

B. The organization uses an unreliable process for gathering and reporting executive compensation data. (Incorrect)

Reason: This issue relates to HR and payroll data integrity, not the impact of performance-based compensation on behavior.

C. The organization experiences increasing discontent of employees, if executives are eligible for compensation amounts that are deemed unreasonable. (Incorrect)

Reason: While excessive executive pay may cause employee dissatisfaction, the question focuses on behavioral impacts on stakeholders, making D the more relevant choice.

IIA Standard 2110 – Governance – Ensures executive compensation aligns with organizational ethics and stakeholder interests.

IIA Standard 2120 – Risk Management – Covers the risks associated with incentive-based compensation.

COSO Fraud Risk Management Guide – Discusses financial fraud linked to executive compensation.

IIA GTAG 3: Continuous Auditing – Supports risk-based monitoring of financial statements.

Why is Answer D Correct?Analysis of Incorrect Answers:IIA References:Thus, the correct answer is D. The organization encourages employee behavior that is inconsistent with the interests of relevant stakeholders.

Key Performance Indicators (KPIs) are used to measure and monitor the effectiveness of a process within an organization. In this case, the internal auditor found that 3% of payments did not match submitted invoices, which indicates a potential control weakness in the accounts payable process.

Process Owner’s Tolerance for Performance Deviations (Correct Answer: A)

The most relevant KPI would be one that sets acceptable error limits for invoice payments.

IIA Standard 2120 – Risk Management states that auditors should assess management's risk tolerance and evaluate whether processes are operating within acceptable limits.

If the organization's threshold for errors is 1% and the audit found 3%, it indicates a significant issue requiring corrective action.

This KPI helps the auditor assess materiality and determine the significance of the 3% deviation.

Why the Other Options Are Incorrect:

B. KPI defining the importance of performance levels and disbursement statistics (Incorrect)

While understanding performance levels and disbursement statistics is useful, this KPI does not directly address error tolerance or the impact of deviations.

C. KPI defining timeliness of reporting disbursement errors (Incorrect)

Reporting errors quickly is important, but this KPI does not help in determining whether a 3% error rate is acceptable or excessive.

D. KPI defining operating ratio objectives (Incorrect)

Operating ratio objectives focus on financial efficiency rather than error tolerance or accuracy in invoice processing.

IIA Standard 2120 – Risk Management (Assessing risk tolerance in financial processes)

IIA Standard 2210 – Engagement Objectives (Evaluating process performance against defined thresholds)

IIA Standard 2130 – Compliance (Ensuring adherence to financial control policies)

Step-by-Step Justification:IIA References for This Answer:Thus, the best answer is A. A KPI that defines the process owner's tolerance for performance deviations, as it directly helps the auditor assess the materiality of the 3% error rate in accounts payable.

Malware Defense as a Cybersecurity Monitoring Activity:

Malware defense refers to the use of antivirus software, endpoint detection and response (EDR), behavior analysis, and real-time monitoring to detect and block malicious code before it can be installed on an organization's systems.

It helps prevent infections from viruses, ransomware, spyware, trojans, and worms that can disrupt business operations.

IIA GTAG (Global Technology Audit Guide) on Cybersecurity states that monitoring tools should proactively detect and neutralize threats before they can execute malicious actions.

A. Boundary defense (Incorrect)

Boundary defense includes firewalls, intrusion detection/prevention systems (IDS/IPS), and network segmentation, which control external access but do not directly monitor and remove malware.

Malware can still enter through phishing emails, infected USB drives, or compromised internal systems.

C. Penetration tests (Incorrect)

Penetration tests simulate attacks to identify vulnerabilities, but they do not actively monitor and prevent malware from being installed.

They help improve security but are not a continuous monitoring activity.

D. Wireless access controls (Incorrect)

Wireless security helps prevent unauthorized network access, but it does not specifically monitor and block malware installation.

Malware can still spread via legitimate access points, infected devices, or phishing attacks.

Explanation of Answer Choice B (Correct Answer):Explanation of Incorrect Answers:Conclusion:To deter disruptive codes (malware) from being installed, organizations should implement continuous malware defense (Option B), including antivirus software, endpoint security, and behavioral analytics.

IIA References:

IIA GTAG - Cybersecurity

IIA Standard 2120 - Risk Management

Residual income (RI) is a performance measure that considers both profits and the investment base by calculating the excess income generated over a required minimum return on investment (ROI).

(A) Residual income (Correct Answer):

Formula: Residual Income=Operating Income−(Required Rate of Return×Investment Base)\text{Residual Income} = \text{Operating Income} - (\text{Required Rate of Return} \times \text{Investment Base})Residual Income=Operating Income−(Required Rate of Return×Investment Base)

RI evaluates profitability after accounting for the cost of capital, making it a better measure of financial performance than net income alone.

It considers both profits (net operating income) and the investment base (capital employed).

(B) A flexible budget:

A flexible budget adjusts based on changes in activity levels but does not directly include investment base considerations.

(C) Variance analysis:

Variance analysis compares actual vs. budgeted performance but does not consider investment base.

(D) A contribution margin income statement by segment:

The contribution margin shows revenue minus variable costs but does not factor in the investment base.

IIA Practice Guide: Measuring Performance – Recognizes residual income as a key metric for evaluating divisional performance.

COSO ERM Framework – Performance Measurement Component – Emphasizes using metrics that account for both profitability and investment.

IIA Standard 2120 - Risk Management – Highlights the importance of financial metrics in evaluating strategic objectives.

Analysis of Each Option:IIA References:Conclusion:Since Residual Income (RI) considers both profits and investment base, option (A) is the correct answer.

Preventing security breaches requires proactive security controls, and the approval of identity requests ensures that only authorized individuals gain access to systems and data.

Types of Security Controls:

Preventive Controls (Stop security incidents before they happen)

Detective Controls (Identify security breaches after they occur)

Corrective Controls (Address security issues after detection)

Why Identity Request Approval is the Most Effective Preventive Control?

User access approval ensures that only verified personnel receive credentials.

According to IIA GTAG on Identity and Access Management, user provisioning must follow strict approval workflows to prevent unauthorized access.

By restricting access before a breach occurs, organizations reduce risks related to insider threats, phishing attacks, and credential misuse.

Why Not Other Options?

B. Access Logging:

Access logs record activity but do not prevent security breaches.

C. Monitoring Privileged Accounts:

Monitoring privileged accounts helps detect suspicious activity but does not stop unauthorized access beforehand.

D. Audit of Access Rights:

Regular audits ensure compliance but do not actively prevent unauthorized access in real-time.

IIA GTAG – Identity and Access Management

IIA Standard 2120 – Risk Management and IT Controls

COBIT 2019 – Access Control and Security Management

Step-by-Step Justification:IIA References:Thus, the correct and verified answer is A. Approval of identity request.

A right-to-audit clause in a contract allows an organization to review and assess the operations, controls, and security measures of a third-party service provider (such as payroll service providers). Providing "read-only" functionalities supports this clause by enabling internal auditors to access and review relevant data without modifying it.

Read-only access allows auditors to verify transactions, data integrity, and compliance without affecting system operations.

This ensures that internal audit functions can review third-party controls without interference, supporting contractual audit rights.

The IIA’s Standard 2070 – External Service Provider Relationships states that organizations should retain the right to audit outsourced functions to ensure compliance with internal control policies.

B. This will enforce robust risk assessment practices → Incorrect. While read-only access can contribute to risk assessment, it does not directly enforce risk management policies.

C. This will address cybersecurity considerations and concerns. → Incorrect. Cybersecurity concerns involve encryption, authentication, and intrusion detection—not just read-only access.

D. This will enhance the third party's ability to apply data analytics → Incorrect. The request is for audit purposes, not to improve the third party’s analytics capabilities.

IIA’s Global Technology Audit Guide (GTAG) 7: IT Outsourcing recommends a right-to-audit clause in third-party agreements.

IIA Standard 1312 emphasizes that external audits should have transparent access to outsourced functions.

ISACA's COBIT Framework highlights the importance of audit access in managing third-party risks.

Why Option A is Correct?Explanation of the Other Options:IIA References & Best Practices:Thus, the correct answer is A. This will support execution of the right-to-audit clause.

This attack was caused by a phishing email containing malware embedded in an Excel spreadsheet. The most effective way to prevent such attacks is employee awareness training, as human error is the leading cause of successful phishing attempts.

Understanding Phishing Attacks:

Phishing emails trick employees into opening malicious links or attachments, leading to malware infections and data breaches.

Cybercriminals often disguise emails as coming from trusted vendors or colleagues.

Why Employee Training is the Most Effective Control:

Employees must be trained to identify suspicious emails, attachments, and links.

Training reduces the likelihood of employees accidentally opening malicious files.

Many cybersecurity frameworks (e.g., NIST, ISO 27001, and CIS) emphasize employee awareness as the first line of defense.

Why the Other Options Are Less Effective Alone:

A. Monitoring network traffic. ❌

Can detect unusual activity after an attack but does not prevent phishing attempts.

B. Using whitelists and blacklists to manage network traffic. ❌

Helps filter harmful websites, but phishing emails often appear legitimate and may bypass filters.

C. Restricting access and blocking unauthorized access to the network. ❌

Helps limit damage after malware enters the network but does not stop employees from opening phishing emails.

IIA GTAG (Global Technology Audit Guide) on Cybersecurity: Recommends employee awareness programs as a key control.

IIA Standard 2110 (Governance): Internal auditors should assess cybersecurity training programs.

NIST Cybersecurity Framework – PR.AT (Protect – Awareness and Training): Emphasizes the role of employee education in preventing cyber threats.

ISO/IEC 27001 – Security Awareness and Training (A.7.2.2): Requires organizations to implement cybersecurity awareness programs.

Step-by-Step Justification:IIA References:Thus, the correct answer is D. Educating employees throughout the company to recognize phishing attacks. ✅

Logging at the database and application levels is a critical security control that enables monitoring, detecting, and investigating potential security incidents. The absence of logging significantly increases cybersecurity risks and can leave an organization vulnerable to undetected attacks.

Incident Response & Forensics: Without logs, the organization will be unable to determine the cause, origin, and impact of cyber incidents or system intrusions.

Compliance Requirements: Many regulatory frameworks (e.g., ISO 27001, NIST 800-53, GDPR, PCI-DSS, SOX) require logging for security monitoring and auditability.

Threat Detection: Logs help in identifying malicious activities, unauthorized access, and data breaches.

Accountability: Ensures that actions taken within the system can be traced back to specific users or administrators.

Option A (The organization will be unable to develop preventative actions based on analytics): While logging helps in analytics, its primary function is incident detection and forensic investigation.

Option B (The organization will not be able to trace and monitor the activities of database administrators): This is partially correct, but logging is not just for administrators—it is essential for monitoring all system activities, including unauthorized access attempts.

Option D (The organization will be unable to upgrade the system to newer versions): Logging does not impact system upgrades; upgrades are related to software lifecycle management, not logging practices.

IIA’s Global Technology Audit Guide (GTAG) – Information Security Controls recommends logging as a fundamental security control.

IIA Standard 2110 – IT Governance: Emphasizes the need for adequate IT risk management, including logging.

COSO Framework (Monitoring Component): Highlights the importance of system monitoring, which includes logging.

Why Option C is Correct:Why Other Options Are Incorrect:IIA References:Thus, the most appropriate answer is C. The organization will be unable to determine why intrusions and cyber incidents took place.

A debenture bond is an unsecured bond that is not backed by specific assets or collateral. Instead, it is backed only by the issuer’s creditworthiness and general reputation. Since the organization in this scenario has a stable rating from international rating agencies and guarantees interest and principal payments, it aligns perfectly with the definition of a debenture bond.

A. A sinking fund bond – A bond that has a special account (sinking fund) where money is set aside to pay off bondholders over time. This is not mentioned in the scenario.

B. A secured bond – This type of bond is backed by specific assets or collateral to reduce investor risk. However, the scenario states that the bond is not backed by assets or collateral, eliminating this choice.

C. A junk bond – These are high-risk, high-yield bonds issued by companies with low credit ratings. The scenario specifies that the company has a stable rating, making this incorrect.

D. A debenture bond (Correct Answer) – Since this bond is unsecured and relies solely on the organization's financial health, it matches the definition of a debenture bond.

IIA IPPF Standard 2120 – Risk Management discusses financial risk management, including bond issuance.

COSO ERM Framework – Financial Risk Management emphasizes evaluating creditworthiness before issuing debt.

IFRS 9 – Financial Instruments provides accounting guidance on different bond types.

Explanation of Each Option:IIA References: