Here’s the thing about public Wi-Fi: when a network has no password, it’s open to literally anyone within range. That means you, the barista, and that random person in the corner booth are all sharing the same connection. And on an unsecured network, the data traveling back and forth between your phone and the internet can potentially be intercepted by others on the same network.
What kind of data? According to Wyoming Enterprise Technology Services, we’re talking passwords, credit card numbers, emails, and your browsing history — basically the stuff you’d never hand to a stranger, but might accidentally be handing over anyway.
The good news — and there is good news — is that this risk has gotten smaller over time. The FTC notes that in the past, most websites didn’t use encryption, which made public Wi-Fi genuinely dangerous. Today, most reputable websites and apps do encrypt your data using HTTPS, which provides real protection. But “most” isn’t “all,” and that gap still matters — especially on older or less reputable sites.
The riskiest moves on public Wi-Fi are the obvious ones: logging into accounts on sites that may not use encryption, shopping with a credit card on unverified sites, or sending sensitive messages. Even routine actions like checking your bank balance carry some risk on an unsecured network if the site or app doesn’t use proper encryption — though most major banking apps do. When in doubt, your phone’s mobile data connection is a much safer call.
A VPN (a virtual private network) is another solid layer of protection — it encrypts your traffic before it even leaves your device. Not a must for checking sports scores, but worth thinking about if you’re regularly using public Wi-Fi for anything personal.