A VPN (Virtual Private Network) creates an encrypted tunnel between your device and a server operated by the VPN provider. It hides your browsing activity from your ISP and local network observers.
What a VPN does: hides your IP address from websites, prevents your ISP from seeing which sites you access, protects traffic on untrusted networks.
What a VPN does not do: make you anonymous, protect you if your device is already compromised, hide your identity from the VPN provider, or encrypt traffic after it leaves the VPN server.
The most important question is not speed. It is whether the provider has a verified no-logs policy tested under real legal pressure.
What it means in practice
A VPN hides your activity from your ISP and local network — it does not make you anonymous, and it does not protect you from surveillance that originates on your device. The provider sees everything the ISP no longer does. The most important question is whether the provider has a verified no-logs policy tested under actual legal pressure, not just claimed in a privacy policy.
Related articles
A VPN won’t save you if this already happened. — Proton VPN review 2026. — Mullvad VPN review 2026. — Proton vs Mullvad. — Free VPNs sell your data.