Open: This principle states that a user shall have access to all the information in a system if the user has access to the system or repository in which the information is being held. This type of data access is by far the least safe, as (in most cases) it's not relevant for the user to have access to all the data. Open, unless: This principle states that a user shall have access to all the information in a system unless there are certain settings to shield specific data. As an example, it could be that HR or finance-related data [...]

Access control protects data by ensuring that only authorized entities can retrieve data from an organization's data repositories. When effectively implemented, access controls prevent unauthorized and compromised users from accessing sensitive data. Nowadays, proper data access management is typically expected from organizations by either clients or partners, but also due to a growing number of laws and regulations in this area.

Data Access Management is a set of processes and technologies used to control access to applications or data. It involves the creation of groups or roles with defined access privileges and then controlling access by defining group memberships.