What is considered a primary auditing activity?

Checking log files is regarded as a primary auditing activity because it involves the systematic review of records that track user and system activities within a network. Log files provide essential insights into who accessed what resources, which actions were taken, and any anomalies or unauthorized attempts to access data. This process is crucial for identifying security breaches, ensuring compliance with policies, and maintaining overall system integrity.

The other activities, while important to the overall security framework, serve different purposes. Encrypting data files is focused on protecting data confidentiality, changing login accounts is associated with access management, and configuring the firewall is related to perimeter security. However, regularly checking log files directly contributes to understanding and overseeing user behavior and system health, making it central to auditing and security assessments.