How VPNs Work and When You Actually Need One
FX TechPulse Editorial · October 20, 2026
A virtual private network, or VPN, creates an encrypted tunnel between your device and a server run by the VPN provider. Your traffic goes through that tunnel before reaching the website you want.
What a VPN does
- Hides your activity from others on the same network, such as public Wi-Fi.
- Hides your real IP address from the sites you visit, showing the VPN server's address instead.
- Stops your internet provider from seeing which sites you open, though the VPN company can.
- Lets you appear to be in another country, which may help with some services.
What a VPN does not do
It does not make you anonymous. Websites can still identify you if you log in or use cookies. It does not protect against phishing or malware, and it will not fix weak passwords.
When it is useful
Public networks, travel to places with censorship, or extra privacy from your provider. Many companies also use VPNs to give staff secure access to work systems.
How to choose a provider
- A clear no-logs policy that has been independently audited.
- Transparent ownership and company location.
- Strong modern protocols.
- A fair price. Be careful with free VPNs, which may make money by selling data.
Bottom line
A VPN is a useful tool for certain situations, not a magic shield. Combine it with updates, strong passwords and good habits.
About this article. Written and reviewed by the FX TechPulse editorial team. General information only, not professional advice. Read our editorial policy. Spotted a mistake? Tell us.