During a post-implementation review of a newly developed HR system, an IS auditor discovers that the system's user role matrix was approved by the HR department head but not by the IT security department. What is the MOST significant risk this finding represents?
- AThe system may have excessive user privileges, leading to security vulnerabilities.
- BThe system's performance may degrade under heavy user load.
- CThe project documentation may be incomplete, hindering future maintenance.
- DThe system may not meet all the functional requirements of the HR department.
Show answer & explanationAnswer & explanation
Correct answer: A. The system may have excessive user privileges, leading to security vulnerabilities.
The IT security department is responsible for ensuring that access controls, including user role definitions and privilege assignments, align with the organization's security policies and principles of least privilege. If the HR department head solely approves the user role matrix, there's a significant risk that roles might be over-privileged, granting users more access than necessary, which creates security vulnerabilities and increases the risk of data breaches or unauthorized data modification.
Why the other options are wrong
- B. System performance is a technical design and testing concern, not directly related to who approves the user role matrix.
- C. While project documentation is important, the immediate and most significant risk of unreviewed user roles is a security vulnerability, not just documentation incompleteness.
- D. Functional requirements are typically defined by the business owner (HR in this case), so their approval would likely ensure functional alignment.
User Role Matrix Review
The process of defining and reviewing user roles and associated privileges within an information system to ensure adherence to the principle of least privilege and security policies.
- Should involve both business owners and IT security.
- Aims to prevent excessive access rights.
- Critical for data confidentiality, integrity, and availability.
- Part of access control design and implementation.
Memory trick: Roles Unchecked? Risks Unleashed!