Meaning
Entities recognized by a security system represent the primary actors to which permissions and roles are assigned. An authentication principal can be a human user, a service account, a piece of hardware, or a software process. Each one possesses a unique identifier that the system uses to verify identity before granting access to resources.
Identity Resolution
The system maps a set of credentials to a specific authentication principal through a verification process. This mapping ensures that the rights exercised during a session belong to a known entity rather than an anonymous requester. Without this clear association, the logs of a system cannot attribute actions to a specific party.
Permission Scope
Assigning rights to a specific authentication principal limits the actions that entity can perform within the environment. This boundary prevents a single compromised account from accessing sensitive data or altering necessary infrastructure. Managing these scopes requires constant adjustment as roles change and projects conclude.
A principal with excessive rights creates a liability that persists until the permissions are revoked or the account is deactivated. Establishing these rights provides the baseline for any security review or compliance check.
Access Record
Every interaction between the environment and an authentication principal creates a footprint in the system logs. These records prove which entity accessed a file or executed a command at a specific time. If the record is missing, the ability to reconstruct events after a failure or a security breach disappears.