What is VPN?
An encrypted tunnel that protects your internet connection and can change your virtual location.
// Explanation
A VPN (Virtual Private Network) encrypts all your internet traffic and routes it through a server elsewhere. This does two things: protects your data on public WiFi networks (coffee shops, airports), and hides your real location (you can 'appear' in another country). People use them for privacy, corporate security, and yes — to watch Netflix from other countries.
// Example
At an airport connected to public WiFi, without a VPN anyone on the network could intercept your traffic. With a VPN, they see useless encrypted noise.