Final answer:
Auditing user permissions is part of the domain of security assessment and testing which ensures that the principle of least privilege is being followed and reduces risks associated with unauthorized access. The correct answer is option c. communication and network security
Step-by-step explanation:
Auditing User Permissions
When a security professional is auditing user permissions to ensure that employees have the correct access levels, this activity falls under the domain of security assessment and testing. This process is essential because it ensures that users do not have more privileges than they need to perform their job functions, which is a concept known as the principle of least privilege.
Auditing user permissions involves reviewing and verifying the rights and privileges assigned to individual users within an organization. This is a part of an ongoing process of risk management and security practices to prevent unauthorized access, data breaches, and maintain the integrity, confidentiality, and availability of the information.
It is important for security professionals to regularly perform these audits to adapt to any changes within the organization, such as role changes, employee turnover, and evolving access requirements based on new projects or policies. While asset security deals with protecting the physical and digital assets of an organization, communication and network security involves securing the network infrastructure, and security and risk management is more broadly concerned with identifying, assessing, and mitigating risks, security assessment and testing is specifically about evaluating security controls and practices, like user permissions, to ensure they are effective.