Which term refers to maintaining a comprehensive record of all users' activities?

Maintaining a comprehensive record of all users' activities is best described by the term "Audit Trail." An audit trail is a detailed log that documents various actions performed by users within a system, making it possible to trace the sequence of events that have occurred. This documentation is crucial for security and compliance purposes because it helps organizations monitor user behavior, investigate incidents, and ensure accountability.

An audit trail allows organizations to verify that users follow applicable policies and procedures, which is vital for regulatory compliance. It provides the data necessary for audits, making it easier to analyze and respond to potential security breaches. The ability to check what users have done in a system is fundamental to maintaining a secure environment and ensuring that sensitive data is handled appropriately.

Regulatory compliance is about adhering to laws and guidelines, accounting generally relates to managing financial transactions, and authentication pertains to verifying the identity of users rather than tracking their activities. These terms serve different roles in the context of security and activities within information systems.