Which of the following practices can enhance the detection of insider threats?

Regularly auditing user access rights is crucial for enhancing the detection of insider threats because it involves a systematic review of who has access to sensitive data and resources within an organization. This practice helps ensure that users only have the permissions necessary for their job functions, which minimizes the risk of privilege abuse and unauthorized access to sensitive information.

By periodically checking access rights, organizations can identify any anomalies, such as users who have excessive permissions or access to data that is unrelated to their roles. This form of proactive monitoring allows the organization to take immediate corrective action, such as revoking unnecessary access or adjusting user roles, which is essential for maintaining a secure environment and mitigating the risk of insider threats.

In comparison, reducing documented policies could lead to ambiguity and increased risk, limiting communication between departments can hinder effective monitoring and collaboration, and allowing unrestricted access to sensitive data significantly heightens the potential for insider threats. All these factors can contribute to an insecure environment, making regular audits of user access rights an effective and necessary measure for detecting and preventing insider threats.