What is an access control entry (ACE)?

[KapilAsdhir]

What is an access control entry (ACE)?

[boomsticks53]

An individual member of an Access Control List. The scope of the Access Control Entry (ACE) can be as granular as an individual subscribing user or as complete as the scope of all possible users

[nobita_deptrai]

An access control entry (ACE) is an element in an access control list (ACL). An ACL can have zero or more ACEs. Each ACE controls or monitors access to an object by a specified trustee. For information about adding, removing, or changing the ACEs in an object's ACLs, see Modifying the ACLs of an Object in C++.

There are six types of ACEs, three of which are supported by all securable objects. The other three types are Object-specific ACEs supported by directory service objects.