The best way to enforce the principle of least privilege on a server containing data with different security classifications is to apply access controls determined by the data owner. The principle of least privilege states that users should only have the minimum level of access required to perform their tasks. The data owner is the person who has the authority and responsibility to classify, label, and protect the data according to its sensitivity and value. The data owner can define the access rights and permissions for each user or role based on the data classification policy and the business needs. This will ensure that only authorized and appropriate users can access the data and prevent unauthorized or excessive access that could compromise the confidentiality, integrity, or availability of the data. References:
* CISA Review Manual (Digital Version)
* CISA Questions, Answers & Explanations Database

An Electronic data processing (EDP) audit is an IT audit. It is the process of collecting and evaluating evidence of an organization's information systems, practices, and operations.

Implementing data backup and recovery procedure is a corrective control, because backup and recovery procedures can be used to roll back database errors. Defining or establishing standards is a preventive control, while monitoring for compliance is adetective control. Ensuring that only authorized personnel can update the database is a preventive control. Establishing controls to handle concurrent access problems is also a preventive control.

Section: Protection of Information Assets