VPN Explained: What It Does, What It Doesn't, and Do You Need One?

VPN marketing promises anonymity, security, and freedom. The reality is both more limited and more useful than the ads suggest. Here's an honest breakdown of what a VPN actually does, when you need one, and what to look for.

What a VPN Does

A VPN (Virtual Private Network) creates an encrypted tunnel between your device and a VPN server. Your traffic exits the internet from that server's IP address, not yours.

• Your ISP sees encrypted traffic to the VPN server — not your actual destinations
• Websites see the VPN server's IP address, not your real IP
• Others on public WiFi cannot intercept your traffic

What a VPN Does NOT Do

• Doesn't make you anonymous — the VPN provider can see all your traffic
• Doesn't protect you from tracking cookies, browser fingerprinting, or being logged in to Google
• Doesn't protect against malware or phishing
• Doesn't hide your traffic from government-level surveillance (in most cases)

When a VPN Is Worth Using

• Public WiFi (airports, hotels, cafes) — prevents local network interception
• Accessing geo-restricted content (streaming services with regional libraries)
• Hiding browsing from your ISP (which can sell browsing data in some countries)
• Remote workers accessing company resources securely

Choosing a VPN

• Avoid free VPNs: They monetise your data — the opposite of what you want
• No-logs policy: Look for providers independently audited for this claim
• Jurisdiction: Providers outside Five Eyes surveillance alliance offer stronger legal protections
• Kill switch: Drops internet if VPN disconnects — prevents accidental unprotected browsing