+An **extranet** is a controlled private network that extends an organization's [Intranet](/wiki/intranet) to authorized external users. It provides secure access to specific information and services, often over the [Internet](/wiki/internet), enabling collaboration with partners, suppliers, or customers.
+## See also
+- [Intranet](/wiki/intranet)
+- [Internet](/wiki/internet)
+- [VPN](/wiki/vpn)
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