Coffee-shop and airport Wi-Fi is shared, often open, and easy to impersonate. While modern HTTPS protects most traffic, there are still real risks worth managing.
The real threats
- Evil-twin hotspots — a fake network named to look legitimate, run to intercept what it can.
- Traffic analysis — even with HTTPS, which sites you visit can leak to others on the network.
- Outdated or misconfigured apps that fall back to insecure connections.
Where a VPN helps
A VPN encrypts all your traffic between your device and the VPN server, so the local network — and the hotspot operator — only sees an encrypted tunnel. On untrusted Wi-Fi, that is genuinely useful: it hides which sites you reach and blocks evil-twin snooping.
A VPN protects data in transit. It does not remove malware already on your device, and it is not anonymity on its own.
Choosing and using a VPN
- Prefer providers with a clear no-logs policy and a solid reputation — or run your own server.
- Use modern protocols (WireGuard and its obfuscated variants) for speed and security.
- Turn on an automatic kill-switch so traffic never leaks if the tunnel drops.
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Good habits still matterKeep your OS updated, avoid logging into sensitive accounts on unknown devices, and verify the exact network name with staff before connecting.