What is a VPN and what can you do with one?

A VPN, or virtual private network, is a tool you can use to protect your identity online, change your virtual location, evade censorship, check out foreign streaming services and more. They mostly take the form of commercially available subscription apps, often so simple to operate that all you need to do is press a button to turn them on and off.

While using a VPN is easy in practice, there's a lot going on under the hood. Knowing what's really happening can help you decide which VPN is right for you, then use it more effectively once you've got it. In this guide, I'm going to delve into what a VPN really is, how it works and what you might need one for.

If this article convinces you that you need a VPN — and I hope it does! — I curate a collection ...