VPNs Explained: Do You Actually Need One
What a VPN actually protects against, what it doesn't, and how to decide if you need one.
VPNs are heavily marketed as a blanket privacy and security fix, but they solve a narrower problem than most advertising suggests.
What a VPN actually does
A VPN encrypts your internet traffic between your device and the VPN provider's server, and it masks your IP address from the websites you visit. In practice, this mainly protects against your internet provider or someone on the same network seeing which sites you visit, and it can make your general location appear different to websites.
What a VPN doesn't protect against
A VPN doesn't stop a website from tracking you once you're logged in, doesn't protect against phishing or malware, and doesn't anonymize you from the VPN provider itself, which can still see your traffic unless you fully trust its no-logs policy. Anyone expecting complete anonymity from a VPN alone will be disappointed.
When a VPN is genuinely useful
Using public Wi-Fi at a cafe or airport, wanting to prevent your internet provider from tracking your browsing habits, and accessing region-restricted content or working securely while traveling are all situations where a VPN provides a real, practical benefit.
When it's not doing much for you
On a secured home network, browsing accounts you're already logged into, a VPN adds little additional privacy since those services can already identify you regardless of your IP address. Free VPN services in particular deserve scrutiny: several have been found monetizing user data, defeating the privacy purpose entirely.
The practical takeaway
Treat a VPN as one layer of protection for specific situations, primarily public networks and provider-level tracking, rather than a complete privacy solution. Choose a reputable, paid provider with an independently audited no-logs policy if you decide you need one.