What Happens on Coffee Shop WiFi (And Why a VPN Matters)
I go to a coffee shop, open my laptop, connect to the "Free WiFi" sign, and start working. Same as everyone. Password's on a chalkboard. Thirty people are on it.
For the longest time I didn't think about what that actually meant. The internet works. My email loads. What else is there?
Then I watched a friend run a packet sniffer on his own machine at a Starbucks. He wasn't hacking anything — just watching his own traffic. And what showed up made me close my laptop.
Every website I visited that didn't have the little padlock icon? Completely exposed. Any login form I submitted? Visible. The app I forgot was still syncing in the background? Broadcasting.
The guy next to you might not be a hacker
But you know who definitely is paying attention? Your internet provider. And the coffee shop's provider. And every ad network that's built a profile on you.
Here's what's actually happening when you connect to public WiFi without protection:
- Your browsing history is visible. Not to everyone — most sites use HTTPS now. But the domains you visit? The timing? The patterns? All visible to anyone running a simple tool.
- Your DNS requests are in the open. Every time you type "bankofamerica.com" into your browser, that request goes out unencrypted on most networks. Someone can build a complete map of what services you use.
- Apps you forgot about are talking. That weather widget, the Spotify client, the Slack desktop app — they're all making network requests. Each one is a data point.
The "but I have nothing to hide" problem
I get it. You're not a criminal. You're not a whistleblower. You just want to check your email and read the news.
But "nothing to hide" misses the point. It's not about hiding — it's about not being the easiest target in the room.
When you lock your front door, you're not declaring that you have state secrets inside. You're just making sure the person looking for an easy opportunity picks the other house.
A VPN on public WiFi does the same thing. It doesn't make you bulletproof. It just makes you not the low-hanging fruit.
What a VPN actually does (without the marketing)
Here's the non-sales-pitch version:
- It creates an encrypted tunnel between your device and the VPN server. Everything you send and receive goes through that tunnel.
- The coffee shop WiFi (and the ISP, and anyone sniffing the network) sees: "encrypted traffic to [some server]." They can't see what's inside.
- The websites you visit see the VPN server's IP address, not your actual location or your home IP.
- Your DNS requests go through the encrypted tunnel too, so nobody on the local network can see which sites you're visiting.
That's it. It's not magic. It doesn't make you anonymous. It's just a locked door between you and the 30 other people on the same network.
Does it have to cost $12/month?
No. That's the part that bugs me. The big VPN companies charge $10-15/month because they're spending millions on YouTube sponsorships and podcast ads. The actual cost of running a VPN server is a few bucks.
WireGuard changed the game. It's a modern protocol that's fast, lean, and doesn't need expensive infrastructure. You can run it on a cheap cloud server and get the same encryption quality as the expensive services.
That's why we built 99¢ VPN — not to be the "best VPN ever" but to be the VPN that doesn't make you choose between coffee and security. $11.88 for a whole year. One device. Works on any public WiFi.
Not because VPNs should be expensive. Because they shouldn't be.
The bottom line
You don't need to be paranoid. You don't need military-grade security for your Starbucks session. But putting a basic lock on your traffic when you're on a public network is just good hygiene, like washing your hands after the subway.
It takes 30 seconds to connect a VPN. It costs less than the coffee you're drinking. And it turns "anyone on this network can see what I'm doing" into "nobody on this network knows what I'm doing."
If you want to try it: $11.88/year, WireGuard, one device, simple setup. No subscriptions that auto-renew at $120. No upsells. Just encrypted traffic on public WiFi.
Written by the person who runs 99¢ VPN. Not a security researcher. Just someone who learned the hard way why public WiFi isn't private.