Accessing the internet isn't normally a problem when you're inside the confines of your own home—it's secure, it's easy to connect to, and it's relatively uncongested—unless the whole family is streaming Netflix on five separate devices. When you venture out though, it's a different story. You can access Wi-Fi in more places than ever, enabling you to keep in touch or catch up with work from wherever you happen to be, but getting online isn't quite as simple, or as safe, as it is with your home network.
A public Wi-Fi network is inherently less secure than your personal, private one, because you don't know who set it up, or who else is connecting to it. Ideally, you wouldn't ever have to use it; better to use your smartphone as a hotspot instead. But for the times that's not practical or even possible, you can still limit the potential damage from public Wi-Fi with a few simple steps.