What network security measure can help identify unauthorized access attempts?

Log auditing is a crucial network security measure designed to monitor and analyze system activities and access attempts. By keeping detailed records of access logs, organizations can track user activities, identify patterns, and detect any unauthorized access attempts. When a user or an application attempts to access a system, logs are generated, detailing the time, nature of the access, and the outcome.

In the case of unauthorized attempts, log auditing allows security teams to pinpoint when and how these attempts occurred, facilitating timely responses and investigations. It plays an essential role in maintaining security compliance and provides valuable insights that can aid in strengthening overall security postures by revealing vulnerabilities.

Other options like data encryption, firewall rules, and content filtering serve important roles in network security but do not primarily focus on identifying unauthorized access attempts. Data encryption primarily protects the confidentiality of data, firewall rules act as barriers to control incoming and outgoing traffic, and content filtering is used to block specific types of content. While all these measures contribute to overall security, they do not specifically identify attempts at unauthorized access in the same way log auditing does.