An access control list (ACL) is a set of rules that determine which users or system processes are granted access to objects, as well as what operations are allowed on given objects. Each entry in an ACL specifies a subject and an associated operation permitted for that subject. When a user attempts to access a resource, the system checks the ACL to see if the requested operation is allowed.
Access control is the selective restriction of access to a place or resource. It works by requiring users to present credentials, such as a password or biometric scan, to gain access. The system then verifies the credentials against a database and grants or denies access based on predefined policies.
In ServiceNow, ACLs are used to control access to data within the platform. They define what data users can access and what actions they can perform on that data. Each ACL specifies the object being secured, the permissions required, and the roles or conditions that must be met for access to be granted. ServiceNow evaluates ACLs in a specific order to ensure that the most restrictive permissions are applied.
The purpose of an access list is to enhance security by defining who can access specific resources and what actions they can perform. This ensures that only authorized users can interact with sensitive data or systems, thereby preventing unauthorized access and potential security breaches. Access lists help enforce organizational policies and compliance requirements.
