Access Control

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Access Control ensures that resources are only granted to those users who are entitled to them.

Access Control (Wikipedia)

In physical security and information security, access control (AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization.

Common physical security access control with a finger print.
A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation.

Locks and login credentials are two analogous mechanisms of access control.

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