A VPN (virtual private network) creates an encrypted tunnel for your internet traffic, hiding your activity from your internet service provider and the websites you visit. People use VPNs for different reasons: some want privacy from their ISP, others need to access services while traveling, and some are concerned about security on public WiFi networks. Understanding how VPNs actually work—and what they do and don't protect—helps you decide if one fits your situation.

These articles explore practical questions like how to evaluate VPN services, what to watch for in their privacy policies, whether a VPN makes sense for your browsing habits, and how to spot misleading marketing claims. You'll learn what happens to your data inside a VPN, what risks remain even with one enabled, and how to think through the tradeoffs between privacy, speed, and cost.