Changed IIA-CIA-Part3 Exam Questions

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:

Information access management is the component of an organization’s cybersecurity risk assessment framework that allows management to implement user controls based on a user’s role. This principle, often referred to as Role-Based Access Control (RBAC), ensures that individuals have access only to the data and systems necessary for their job responsibilities.

Definition of Role-Based Access Control (RBAC):

RBAC assigns permissions based on an individual's role within the organization.

For example, a finance employee may access financial records, but not HR data.

Minimization of Insider Threats:

By limiting access to sensitive data, information access management helps reduce the risk of fraud, data breaches, and unauthorized modifications.

Regulatory Compliance:

Many regulations (e.g., GDPR, SOX, HIPAA) require companies to implement access control measures to protect sensitive information.

Internal auditors assess whether access management policies are enforced properly.

Alignment with Cybersecurity Risk Frameworks:

NIST Cybersecurity Framework – Access Control (AC) Family: Establishes guidelines for restricting access based on user identity and role.

ISO/IEC 27001 – Information Security Management System (ISMS): Requires organizations to implement access control policies to protect data integrity.

A. Prompt response and remediation policy: Focuses on incident response rather than proactive access control.

B. Inventory of information assets: Important for tracking IT assets but does not define access privileges.

D. Standard security configurations: Enforce security settings but do not manage access based on user roles.

IIA GTAG (Global Technology Audit Guide) on Information Security: Recommends implementing access control policies to restrict unauthorized access.

IIA Standard 2110 – Governance: Emphasizes the importance of cybersecurity governance, including role-based access management.

COBIT Framework – DSS05.04 (Manage User Identity and Access): Defines best practices for controlling user access based on organizational roles.

Step-by-Step Justification:Why Not the Other Options?IIA References:

The described situation is a classic social engineering attack, specifically a phishing or CEO fraud (business email compromise) attempt. Social engineering exploits human psychology rather than technical vulnerabilities. In this case, the attacker attempted to impersonate the CEO and trick the board member into making an unauthorized payment.

(A) Incorrect – A risk of spyware and malware.

Spyware and malware typically involve malicious software installed on a device, which is not the case here.

This attack relied on deception rather than malware to obtain unauthorized funds.

(B) Incorrect – A risk of corporate espionage.

Corporate espionage involves unauthorized data theft, sabotage, or insider threats.

The attacker here attempted financial fraud, not intellectual property theft.

(C) Incorrect – A ransomware attack risk.

Ransomware encrypts files and demands payment for decryption.

There is no mention of system encryption or ransom demands in this case.

(D) Correct – A social engineering risk.

The attacker impersonated the CEO and used urgency to manipulate the board member into processing a fraudulent payment.

This technique is a business email compromise (BEC) scam, a well-known social engineering tactic.

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

Discusses social engineering and its impact on financial fraud.

NIST Cybersecurity Framework – Social Engineering Threats

Defines social engineering tactics, including email impersonation and phishing.

COBIT Framework – Information Security Governance

Recommends controls to mitigate social engineering risks, such as employee training and email authentication mechanisms.

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

Comprehensive and Detailed In-Depth Explanation:

Big data is commonly characterized by the "Three Vs":

Volume: The vast amount of data generated and collected.

Velocity: The speed at which new data is generated and the pace at which data moves.

Variety: The diverse types and sources of data, including structured, semi-structured, and unstructured formats.

These characteristics highlight the challenges and considerations in managing and analyzing big data. Options A, C, and D list attributes that, while relevant in certain contexts, do not encapsulate the core defining features of big data as effectively as option B.