Which term refers to a network's secure communication channel over the Internet?

The term that refers to a network's secure communication channel over the Internet is a Virtual Private Network, commonly known as VPN. A VPN creates an encrypted connection between your device and a server operated by the VPN provider, which helps protect your online activities from eavesdropping, ensuring privacy and security. This secure tunnel allows users to send and receive data safely, making it particularly useful for accessing restricted websites or working remotely without exposing sensitive information.

Considering the other terms, a Local Area Network (LAN) refers to a network that connects devices in a limited area, such as a single building or campus, but does not inherently provide secure communication over the Internet. A Wide Area Network (WAN) connects multiple LANs over large distances, yet it does not specifically define a secure communication channel. An Intranet is a private network that uses Internet technologies for communication and information sharing within an organization, but it does not necessarily ensure secure communication over the public Internet like a VPN does.