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Guide

What Is a VPN and How Does It Work?

A draft guide to VPN tunneling, encryption, routing, limitations, and practical evaluation.

A VPN changes how traffic travels between a device and the wider internet, but the details matter more than the label.

Follow the traffic path

Document what enters the encrypted tunnel, where the tunnel ends, and which traffic may remain outside it.

Separate privacy from anonymity

Explain the parties that can still observe activity and the trust transferred to the VPN operator.

Continue with provider research

Use the NordVPN evaluation workspace and the privacy-focused review draft as examples of the evidence still required.

Explore Proton VPN

Compare Proton VPN plans and choose the option that fits your privacy needs.

View Proton VPN