Public Wi-Fi is convenient but risky — man-in-the-middle attacks and packet sniffing are real threats. A VPN creates an encrypted tunnel that protects your data. We recommend ProtonVPN for ease of use, WireGuard for speed, and OpenVPN for maximum compatibility.
you're at a coffee shop, airport lounge, or hotel lobby. you connect to the free Wi-Fi, check your email, maybe log into your bank. feels normal, right?
but public Wi-Fi is a playground for attackers. with simple tools, someone on the same network can intercept your traffic — a man-in-the-middle attack — or use packet sniffing to read unencrypted data like passwords and cookies.1
a VPN fixes this. it creates an encrypted tunnel between your device and a remote server, so even if someone intercepts your data, all they see is gibberish.
here's what we recommend.
if you want something that just works, start here. protonvpn is a consumer-ready app with a clean interface and strong privacy credentials. its Secure Core architecture routes traffic through multiple servers in privacy-friendly jurisdictions, protecting against network-level surveillance.3
key features:
protonvpn is ideal for non-technical users who want strong security without configuring anything. the free tier exists (limited servers, no speed guarantee), but for public Wi-Fi use, the paid plan gives you access to Secure Core servers.
public Wi-Fi is often slow. the last thing you want is a VPN that makes it worse.
wireguard is a modern VPN protocol built for performance. it uses state-of-the-art cryptography and runs in the Linux kernel, which means minimal overhead and fast connections.1 compared to older protocols, wireguard can maintain good speeds even on congested public hotspots.
it's not a consumer app by itself — you'd typically use it through a VPN provider that supports wireguard (most major ones do now). if speed is your priority, look for a provider that offers wireguard as a protocol option.
some public networks block VPN traffic. airports, hotels, and corporate guest networks sometimes restrict non-standard ports.
openvpn is the most widely supported VPN protocol in existence. it's open-source, highly configurable, and runs on virtually every platform.2 because it can operate over tcp port 443 (the same port used by https traffic), it often works on networks that block other VPN protocols.
the trade-off: openvpn is slower than wireguard and requires more setup if you're running your own server. but if you need reliability above all else — especially on restrictive networks — openvpn is your fallback.
| approach | setup time | control | best for |
|---|---|---|---|
| consumer app (protonvpn) | minutes | low — provider manages servers | non-technical users, quick setup |
| self-hosted (wireguard/openvpn) | hours to days | full — you control the server | advanced users, privacy purists |
consumer apps are the right call for most people. self-hosting gives you full control but requires a VPS, domain knowledge, and ongoing maintenance.
not all VPNs are equal. here are the features that matter:
protonvpn offers all of these out of the box.3 wireguard and openvpn are protocols — the features depend on how your provider implements them.
public Wi-Fi is risky, but a VPN makes it safe. for most people, protonvpn is the easiest recommendation: strong security, easy setup, and Secure Core for extra protection on untrusted networks. if speed is critical, choose a wireguard-based provider. if you need to get through a blocked network, openvpn is your best bet.
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