Describe the process of auditing in DB2 and its importance in ensuring security.

Auditing in DB2 involves tracking and logging database activity to monitor user actions, changes to data, and system events. This process helps in identifying security breaches, detecting unauthorized access, and ensuring compliance with regulatory requirements. By recording database activities, auditing provides a comprehensive trail of actions performed within the database, facilitating forensic analysis and investigation in case of security incidents. It plays a crucial role in ensuring the integrity, confidentiality, and availability of data in DB2 environments.