ACL (Access Control List) – What is ACL? Definition
Meaning: The acronym ACL stands for Access Control List.
Definition: ACL is a set of data that informs a computer’s operating system which permissions, or access rights, that each user or group has to a specific system object, such as a directory or file.
Each object has a unique security attribute that identifies which users have access to it. The list has an entry for each system user with access privileges, such as read, write or execute.