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.
Know Who To Trust
This relates to the previous point, but wherever possible stick to well-known networks, like Starbucks. These Wi-Fi networks are likely less suspect because the people and companies operating them are already getting money out of you.
No public Wi-Fi network is absolutely secure—that depends as much on who's on it with you as who provides it—but in terms of relative safety, known quantities generally beat out that random public Wi-Fi network that pops up on your phone in a shopping mall, or a network operated by a third party that you've never heard of. These may well be legit, but if any passerby can hook up for free, what's the benefit for the people running the network? How are they making money? There's no hard or fast rule to apply, but using a bit of common sense