There’s a reason that “free WiFi” sign at your local café feels like a small win every time you spot it. But here’s the thing nobody tells you when you’re connecting to it for the tenth time this month: that open network is also exactly what makes it a favourite hunting ground for anyone looking to snoop on what you’re doing online.
Windows users can just switch the network type to “Public” instead of “Private” and it handles most of this automatically. Your phone and laptop are usually set up to share files easily on networks you trust, like your home WiFi. That same setting is a liability the moment you’re on a public network surrounded by strangers. Before joining, dig into your sharing settings and turn off AirDrop, network discovery, anything along those lines. On a Mac, it’s tucked away in System Settings under Sharing.
If you walk into a café and see “CafeXYZ_Free” and “CafeXYZ_WiFi” sitting next to each other in your WiFi list, one of those is probably not what it claims to be. This is the step almost nobody bothers with, and it’s the one that stops the most common scam cold. Just ask someone behind the counter what the network is actually called. Takes ten seconds, and it’s the difference between browsing normally and handing your data to a stranger two tables away. Realistically, checking the network name, locking down sharing settings, running a VPN, sticking to HTTPS sites, and keeping your antivirus switched on will deal with the vast majority of what actually happens to people on public WiFi. The one thing worth remembering above all of this: if you can avoid doing any actual banking or sensitive logins on public WiFi altogether, do that. A VPN helps a lot, but skipping the riskiest activities entirely is still the safest bet of all.