Access Control Lists (ACL)

Access Control Lists (ACLs) are security features used in computer networks and systems to define which users or devices can access specific resources, such as files, servers, or network services. They act like a list of permissions, specifying who is allowed or denied access and what actions they can perform (like read, write, or execute). This helps protect sensitive information by ensuring only authorized users can access or modify data, and they are commonly used in firewalls, routers, and operating systems to maintain security and control.