The VPN Question Everyone Has
VPNs are everywhere — advertised on podcasts, bundled into antivirus software, and recommended by security experts. But between the marketing hype and the technical jargon, it can be hard to get a straight answer: what does a VPN actually do, and do you need one? This guide cuts through the noise.
How a VPN Works (Simply Put)
A VPN (Virtual Private Network) creates an encrypted tunnel between your device and a server operated by the VPN provider. When you browse the web through a VPN:
- Your traffic is encrypted before it leaves your device.
- It routes through the VPN server in a location of your choice.
- Websites see the VPN server's IP address — not yours.
This has two main effects: your internet traffic is hidden from your local network and ISP, and your apparent location becomes the VPN server's location rather than your own.
What a VPN Does Protect You From
- ISP tracking: Your internet service provider can see every website you visit. A VPN encrypts this traffic so your ISP only sees that you're connected to a VPN server.
- Public Wi-Fi snooping: On open networks (cafés, airports, hotels), other people on the network could potentially intercept unencrypted traffic. A VPN makes your traffic unreadable to them.
- IP-based tracking: Websites and advertisers use your IP address as one data point for tracking. A VPN masks your real IP.
- Geographic restrictions: A VPN can make it appear you're browsing from another country, which can unlock regionally restricted content.
What a VPN Does NOT Protect You From
This is where marketing often misleads people. A VPN is not a silver bullet for online privacy:
- Browser cookies and fingerprinting: If you're logged into Google or Facebook, those services track you regardless of your VPN.
- Malware and phishing: A VPN won't stop you from downloading a malicious file or falling for a phishing email.
- The VPN provider itself: Your traffic is still visible to the VPN company. A trustworthy provider with a verified no-logs policy is essential.
- DNS leaks and WebRTC leaks: Poorly configured VPNs can still expose your real IP address through browser leaks.
Who Actually Needs a VPN?
A VPN is most valuable for specific use cases:
- Frequent travellers who regularly use public or hotel Wi-Fi
- Remote workers who need to access a company network securely
- People in restrictive regions where internet access is censored or surveilled
- Privacy-conscious users who don't want their ISP building a profile of their browsing
- Streamers who want access to content libraries from other countries
What to Look for in a VPN
If you decide a VPN is right for you, prioritise these factors:
- Verified no-logs policy — ideally audited by an independent third party
- Strong encryption protocols — WireGuard and OpenVPN are current standards
- Kill switch — cuts your internet if the VPN drops, preventing accidental exposure
- Clear privacy policy — avoid free VPNs with vague data practices
- Jurisdiction — where the provider is based affects which laws govern your data
The Bottom Line
A VPN is a useful privacy tool, not a complete security solution. If you regularly use public Wi-Fi, travel internationally, or want to limit your ISP's visibility into your browsing, a reputable paid VPN is worth considering. For everyday home browsing on a trusted network, the need is lower — but it's never zero for anyone who values their digital privacy.