IIA IIA-CIA-Part3 Exam With Confidence Using Practice Dumps

Access control is about ensuring that only authorized individuals can access specific data, based on their role and necessity. The Principle of Least Privilege (PoLP) dictates that users should only have access to the data they need for their job.

Minimizes Unauthorized Access Risks – Prevents employees from accessing sensitive data unnecessarily.

Supports Segregation of Duties (SoD) – Critical in preventing fraud and security breaches.

Enhances Compliance – Meets regulatory requirements like GDPR, PCI-DSS, and SOX, which demand strict access controls.

Strengthens System Security – Reduces potential damage from malware, insider threats, or data breaches.

A. Install and update anti-virus software – Important for cybersecurity but does not directly control user access.

B. Implement data encryption techniques – Protects stored or transmitted data but does not define access rights.

D. Upgrade firewall configuration – Controls network traffic, not user-specific access within an automated system.

IIA’s GTAG on Access Management and Controls – Recommends setting data access based on user needs to prevent fraud and misuse.

COBIT 2019 (Governance and Management of Enterprise IT) – Advocates for role-based access controls.

ISO 27001 Annex A.9 (Access Control) – Stresses the importance of restricting access based on business requirements.

Why Setting Data Availability by User Need is the Best Strategy?Why Not the Other Options?IIA References:✅ Final Answer: C. Set data availability by user need.

The most effective way to prevent the unauthorized disclosure of confidential information is to limit access based on employee roles and duties. This follows the principle of least privilege (PoLP), ensuring that employees only access the data necessary for their job functions.

(A) Nondisclosure agreements between the firm and its employees. ❌

Incorrect. While NDAs help deter leaks, they do not prevent unauthorized access to information. An employee who signs an NDA can still access and leak data.

(B) Logs of user activity within the information system. ❌

Incorrect. Activity logs help detect and investigate breaches but do not actively prevent unauthorized disclosure.

(C) Two-factor authentication for access into the information system. ❌

Incorrect. While two-factor authentication enhances system security, it does not prevent employees with authorized access from leaking confidential data.

(D) Limited access to information, based on employee duties. ✅

Correct. Role-based access control (RBAC) ensures that employees only access the information necessary for their job responsibilities, reducing the risk of leaks.

IIA GTAG "Identity and Access Management" highlights restricted access as the most effective control for preventing unauthorized disclosure of confidential data.

IIA GTAG – "Identity and Access Management"

IIA Standard 2120 – Risk Management (Data Protection Controls)

COBIT Framework – Information Security and Access Control

Analysis of Answer Choices:IIA References:Thus, the correct answer is D (Limited access to information, based on employee duties), as restricting access is the most effective preventive control against data disclosure.