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

A spear phishing attack is a targeted email attack aimed at a specific individual, organization, or business. Unlike general phishing, which casts a wide net, spear phishing is highly personalized and designed to deceive the recipient into providing sensitive information.

Personalization – The email references a golf membership renewal, making it relevant and believable to the recipient.

Social Engineering – The attacker exploits the victim’s trust by pretending to be a legitimate entity.

Malicious Link – The victim clicks a fraudulent hyperlink and enters sensitive credit card details.

Financial Fraud – The goal is to steal payment information, leading to unauthorized transactions.

A. Numerous and consistent attacks on the company’s website caused the server to crash.

This describes a Denial-of-Service (DoS) attack, not spear phishing.

B. A person posing as an IT help desk representative called employees and played a generic message requesting passwords.

This describes vishing (voice phishing) rather than spear phishing.

D. Many users of a social network service received fake notifications about a new investment opportunity.

This is general phishing, as it targets multiple users instead of one individual.

IIA’s GTAG (Global Technology Audit Guide) on Cybersecurity – Emphasizes the risk of spear phishing in cyber fraud.

NIST SP 800-61 (Computer Security Incident Handling Guide) – Defines spear phishing as a highly targeted attack method.

COBIT 2019 (Governance and Management of IT) – Highlights social engineering risks in IT security.

Why Option C is Correct?Why Not the Other Options?IIA References:✅ Final Answer: C. A person received a personalized email regarding a golf membership renewal, and he clicked a hyperlink to enter his credit card data into a fake website.

A false positive occurs when a system incorrectly identifies a legitimate item as a threat or an unwanted entity. In the case of a spam filter, a false positive happens when the filter mistakenly classifies a genuine email as spam, even though it is legitimate.

Option A: "The spam filter removed incoming communication that included certain keywords and domains."

This describes a general filtering mechanism but does not indicate a mistake. If the filter was correctly configured, it is not necessarily a false positive. (Incorrect)

Option B: "The spam filter deleted commercial ads automatically, as they were recognized as unwanted."

If the ads were indeed unwanted, this is a true positive, meaning the system worked correctly. (Incorrect)

Option C: "The spam filter routed to the 'junk' folder a newsletter that appeared to include links to fake websites."

If the newsletter contained suspicious links, the filter was functioning as designed. This is not necessarily an error. (Incorrect)

Option D: "The spam filter blocked a fitness club gift card that coworkers sent to an employee for her birthday."

This is a clear example of a false positive because the email was not spam or malicious, yet the filter mistakenly blocked it. (Correct Answer)

IIA GTAG (Global Technology Audit Guide) on Cybersecurity and IT Risks: Discusses false positives and negatives in automated security controls.

IIA’s "Auditing IT Security Controls" Report: Emphasizes the need for tuning security filters to reduce false positives.

COBIT 2019 – DSS05.07 (Manage Security Services): Highlights the importance of minimizing false positives to ensure business communication is not disrupted.

Analysis of Each Option:IIA References:Thus, the correct answer is D. The spam filter blocked a fitness club gift card that coworkers sent to an employee for her birthday.

A highly centralized organization is one where decision-making authority is concentrated at the top management level, with lower levels having minimal autonomy. This change means that most critical decisions are made at the corporate level, and lower-level managers have limited decision-making power.

(A) Incorrect – Top management does little monitoring of the decisions made at lower levels.

In a centralized organization, top management monitors and controls most decisions.

This statement applies more to decentralized structures where decision-making is distributed.

(B) Incorrect – The decisions made at the lower levels of management are considered very important.

In a centralized structure, decisions made at lower levels hold less significance since authority is concentrated at the top.

(C) Correct – Decisions made at lower levels in the organizational structure are few.

Centralized structures limit decision-making power at lower levels, keeping control with top executives.

Lower-level managers mostly follow directives from upper management rather than making independent decisions.

(D) Incorrect – Reliance is placed on top management decision-making by few of the organization’s departments.

In a centralized system, most (not just a few) departments rely on top management for decision-making.

IIA’s Global Internal Audit Standards – Organizational Governance and Decision-Making

Explains centralized vs. decentralized structures and their impact on risk management.

COSO’s ERM Framework – Governance and Decision Authority

Discusses the implications of centralization on strategic decision-making.

IIA’s Guide on Corporate Governance and Internal Control Frameworks

Highlights the effect of centralization on accountability, oversight, and risk management.

Analysis of Answer Choices:IIA References and Internal Auditing Standards:

Cybersecurity is primarily focused on protecting information assets by preventing unauthorized access, data breaches, cyberattacks, and other security threats. The confidentiality, integrity, and availability (CIA) triad is the foundation of cybersecurity, with access control playing a key role in mitigating risks.

(A) Incorrect – To protect the effective performance of IT general and application controls.

While cybersecurity supports IT controls, its primary goal is information security, not just control performance.

(B) Incorrect – To regulate users' behavior in the web and cloud environment.

Cybersecurity includes user behavior policies, but its primary goal is preventing unauthorized access rather than regulation.

(C) Correct – To prevent unauthorized access to information assets.

The core objective of cybersecurity is to prevent unauthorized access, protecting data from cyber threats.

This aligns with the CIA (Confidentiality, Integrity, Availability) security model.

(D) Incorrect – To secure application of protocols and authorization routines.

Protocols and authorization routines are part of cybersecurity controls, but they are not the primary objective.

IIA’s GTAG (Global Technology Audit Guide) – Cybersecurity Risks and Controls

Defines cybersecurity as the protection of information assets from unauthorized access and threats.

NIST Cybersecurity Framework – Access Control and Information Security

Focuses on preventing unauthorized access to sensitive systems.

COBIT Framework – IT Governance and Security

Emphasizes the protection of data and IT assets through cybersecurity measures.

Analysis of Answer Choices:IIA References and Internal Auditing Standards:

Organizations that rely on third-party vendors for IT services must ensure secure and controlled communication, especially in areas where external connections are involved. External connections typically include:

Cloud services (e.g., SaaS, PaaS, IaaS)

Third-party APIs

Remote access (VPNs, firewalls, network gateways)

IoT devices and external sensors

These connections introduce cybersecurity risks, requiring continuous monitoring, vendor communication, and security controls.

(A) Applications.

Incorrect. While application security is important, it is typically managed internally. Vendor involvement is needed for software patches and updates, but communication is not as tightly monitored.

(B) Technical infrastructure.

Incorrect. This layer includes internal IT components like servers, databases, and networks, which are mostly managed in-house. Vendor involvement is required for hardware/software updates but not to the same extent as external connections.

(C) External connections. ✅

Correct. External connections require tightly controlled communication with vendors to prevent security breaches, unauthorized access, and data leaks.

IIA GTAG "Auditing IT Governance" highlights third-party risk management as a key area for IT audits.

IIA Standard 2110 requires organizations to establish governance structures for vendor and IT security management.

(D) IT management.

Incorrect. IT management focuses on internal oversight of IT policies and compliance, but does not necessarily require tightly controlled vendor communication.

IIA GTAG – "Auditing IT Governance"

IIA GTAG – "Managing Third-Party Risks"

IIA Standard 2110 – Governance

Analysis of Answer Choices:IIA References:

Individual operational goals must align with an organization's overall strategy to ensure that employee efforts contribute to corporate success. Operational goals are specific, measurable objectives that support the broader strategic direction.

Why Option B (Alignment with organizational strategy) is Correct:

Organizational strategy defines the long-term vision, mission, and objectives.

Individual operational goals should align with this strategy to ensure consistency and effectiveness.

Strategic alignment ensures resources are used efficiently and performance contributes to corporate success.

Why Other Options Are Incorrect:

Option A (Individual skills and capabilities):

While important, skills alone do not define operational goals—they are tools to achieve goals.

Option C (Financial and human resources of the unit):

These resources support operational goals, but they do not serve as the foundation. Goals are set based on strategy first.

Option D (Targets of key performance indicators - KPIs):

KPIs measure performance but are not the basis for setting operational goals. Goals should align with strategy first, then KPIs track progress.

IIA Practice Guide – "Performance Management Auditing": Highlights strategic alignment as a basis for setting operational goals.

COSO ERM Framework – "Strategic and Performance Integration": Emphasizes aligning individual goals with organizational strategy.

IIA's Global Perspectives & Insights – "Auditing Organizational Performance": Discusses the role of strategy in goal-setting.

IIA References:Thus, the correct answer is B. Alignment with organizational strategy.

Preventive security controls proactively stop unauthorized access before it occurs. The most effective method is strict access management, where new or additional access rights require formal validation before being granted.

Prevents Unauthorized Entry – Ensures that only approved personnel have access to the power plant.

Implements Segregation of Duties (SoD) – Supervisors validate access requests, reducing insider threats.

Aligns with Least Privilege Principle – Employees get only the minimum access necessary for their role.

Prevents Security Risks Before They Happen – Unlike detective or corrective controls, this method stops unauthorized access before it occurs.

A. Offboarding procedure (monthly review) – This is a detective control, identifying issues after access is granted, not preventing them.

B. Smart lock anomaly scanning – Also detective, as it identifies suspicious behavior after access has been used.

D. Automatic notifications for after-hours entry – A corrective control, responding to potential violations instead of preventing them.

IIA’s GTAG on Identity and Access Management – Recommends pre-approval processes for sensitive locations.

ISO 27001 Annex A.9 (Access Control) – Requires role-based access management for critical infrastructures.

NIST SP 800-53 (Security and Privacy Controls for Federal Information Systems) – Defines supervisor approval as a key preventive measure.

Why Approval-Based Access Control is the Best Preventive Measure?Why Not the Other Options?IIA References:

Comprehensive and Detailed Step-by-Step Explanation with all IIA References: =

Understanding the Impact of an Understated Ending Inventory:

Ending inventory is a key component of the cost of goods sold (COGS) calculation: COGS=BeginningInventory+Purchases−EndingInventoryCOGS = Beginning Inventory + Purchases - Ending InventoryCOGS=BeginningInventory+Purchases−EndingInventory

If the ending inventory is understated, it means the reported inventory is lower than its actual value.

This results in an overstated COGS because a smaller amount is subtracted in the formula above.

An overstated COGS leads to an understated net income in the current year.

Effect on the Following Year’s Income Statement:

The beginning inventory for the next year is based on the ending inventory of the previous year.

Since the prior year's ending inventory was understated, the new year's beginning inventory is also understated.

A lower beginning inventory leads to a lower COGS in the new year.

Since COGS is lower, net income in the following year will be overstated.

IIA’s Perspective on Financial Reporting Errors:

The IIA’s International Standards for the Professional Practice of Internal Auditing (IPPF) emphasize the importance of accurate financial reporting.

IIA Standard 1220 – Due Professional Care requires internal auditors to consider the probability of errors, fraud, or misstatements in financial reporting.

COSO’s Internal Control – Integrated Framework highlights that inventory valuation errors can impact financial integrity and decision-making.

GAAP & IFRS Accounting Standards also require proper inventory reporting to ensure accurate financial statements.

IIA References:

IPPF Standard 1220 – Due Professional Care

COSO Internal Control – Integrated Framework

GAAP & IFRS Accounting Principles on Inventory Valuation

Thus, the correct and verified answer is C. Net income would be overstated.

Data governance refers to the policies, processes, and controls an organization implements to ensure data integrity, security, and compliance. When an organization has a weak data governance culture, the most compromised attribute of data is "veracity," which refers to the accuracy, reliability, and trustworthiness of data.

Why Option D (Veracity) is Correct:

Weak data governance leads to poor data quality, inconsistencies, and errors, reducing data veracity (trustworthiness and accuracy).

Without strong governance, data may be incomplete, outdated, or manipulated, leading to flawed decision-making.

Data veracity is critical for risk management, internal audit, and regulatory compliance, as unreliable data can lead to financial misstatements and operational risks.

Why Other Options Are Incorrect:

Option A (Variety):

Variety refers to different types and sources of data (structured, unstructured, semi-structured).

A weak data governance culture does not necessarily affect the diversity of data sources.

Option B (Velocity):

Velocity refers to the speed at which data is generated, processed, and analyzed.

Weak governance impacts data quality more than processing speed.

Option C (Volume):

Volume refers to the quantity of data being processed and stored.

Weak data governance might lead to data duplication or loss but does not directly impact data volume.

IIA GTAG – "Auditing Data Governance": Emphasizes the importance of data veracity in decision-making.

COSO Internal Control Framework: Highlights the role of data integrity in financial and operational controls.

IIA’s Global Technology Audit Guide on Data Analytics: Discusses the risks of poor data governance affecting veracity.

IIA References: