A VPN (virtual private network) is software that encrypts your internet traffic and routes it through a remote server, masking your location and online activity from your internet provider and the websites you visit. People consider VPNs for different reasons: some want privacy from their ISP, others worry about security on public WiFi, and some want to appear as if they're browsing from a different location. Understanding what a VPN actually does—and what it doesn't—helps you decide whether one fits your situation.
These guides explain how VPNs work, what they protect you from and what they don't, how to evaluate whether you need one at home, and what to look for if you decide to use one. You'll learn the real trade-offs, including speed changes and potential costs, so you can make a choice based on your actual needs rather than marketing claims.