What is a VPN and what is it for?
A VPN creates an encrypted connection between your device and a VPN server, helping protect data in transit and changing the IP address websites see.
How does a VPN work?
When you connect to a VPN, your traffic is sent through an encrypted tunnel before it reaches the internet. That can make it more difficult for people on the same network to inspect your connection and can mask your home IP address from the websites you visit.
The UK’s National Cyber Security Centre describes VPNs as encrypted network connections between devices and a remote network.
What is a VPN used for?
Public Wi-Fi
A VPN can add protection when using shared networks in cafés, hotels or airports.
Privacy
It can reduce direct exposure of your home IP address to the sites you visit.
Travel
It can help you access services while away from home, subject to local rules and service terms.
Remote work
It may be part of a wider security setup for work tools and sensitive files.
What a VPN does not do
A VPN is not a complete privacy solution. It does not automatically stop every ad, cookie or tracker, and it does not make illegal activity legal. The CNIL explains that online tracking does not rely on IP addresses alone.
Choose based on your needs
Learn which criteria matter most for the way you use the internet.
How to choose a VPN