A VPN (Virtual Private Network) is a secure communication channel that encrypts internet traffic and allows users to access private networks remotely.

Elaboration:

• Uses encryption protocols like OpenVPN, L2TP/IPSec, and WireGuard.
• Masks IP addresses, providing anonymity and security.
• Useful for remote work, bypassing geo-restrictions, and securing public Wi-Fi connections.

Example:

A company employee connects to a corporate VPN to securely access internal company resources.