Which of the following should a database administrator for an analytics firm implement to best...

Data auditing is the most essential and effective method to protect PII from an insider threat. Data auditing is the process of monitoring and recording the activities and events related to data access and usage. Data auditing can help detect and prevent any suspicious or anomalous behavior by an insider threat who tries to access or manipulate PII.

Data auditing can provide several benefits for data protection, such as:

It can provide accountability and transparency for data access and usage, which can deter potential insider threats from abusing their privileges or violating policies.

It can provide evidence and traceability for data incidents, which can help investigate and respond to data breaches or leaks by insider threats.

It can provide feedback and insights for data security improvement, which can help identify and address any gaps or weaknesses in data protection measures.

Data auditing can be done by using tools such as logs, alerts, reports, or dashboards. These tools can help security analysts track and analyze data activity and identify any patterns or anomalies that indicate a possible insider threat.