Access control

In physical security and information security, access control (AC) is the action of deciding whether a subject should be granted or denied access to an object (for example, a place or a resource). The act of accessing may mean consuming, entering, or using. It is often used interchangeably with authorization, although the authorization may be granted well in advance of the access control decision.

Extends: [Access control](https://wikipedia.org.ai/Access control), [Identity management](https://wikipedia.org.ai/Identity management), [Military terminology](https://wikipedia.org.ai/Military terminology), [Perimeter security](https://wikipedia.org.ai/Perimeter security), [Physical security](https://wikipedia.org.ai/Physical security)