It used to be risky to use public Wi-Fi, but a lot has changed over the last 10 years. These days, it's probably OK.
When you’re out and about, and especially when you’re traveling, you might find yourself feeling quite a bit of anxiety when logging into public Wi-Fi. Maybe you’re sitting in an airport waiting for your flight, and the siren call of that Wi-Fi network is making your ears itch. You’ve got one of the best laptops you can buy, but you’ve always heard that public Wi-Fi is dangerous, or your work strictly prohibits it.
But just under a decade ago, a man named Edward Snowden popped up on the world’s radar and everyone suddenly realized that everything we do on the internet could be watched and/or collected. When that happened, we all freaked out. Fortunately, we freaked out in a good way; we started locking everything down as much as possible.
The only information that leaks unencrypted is DNS lookup information. For example, if you open a browser and go to www.digitaltrends.com, and someone intercepts your signal, they can see that you went to the best tech website ever, but they wouldn’t be able to see what you did when you got there. Even that is changing according to Wisniewski. Both Firefox and Google Chrome hide DNS lookup information by default, and most other web browsers offer the ability to do so.
Exceptions to the rule So what that all boils down to is that for the most part, public Wi-Fi is about as safe as you can reasonably ask for, but there are a few caveats to that. This will sound similar to our Scream trailer smart home hacking article, but similar circumstances call for caution in this case.
Other ways to stay safe So are there ways that you can make your web traffic even safer? I asked about VPNs for example. One theory is that a Virtual Private Network is a good way to hide data, and to an extent, Wisniewski agrees. But in cases like that, he describes a VPN as “reassigning trust.” While most of your traffic is already encrypted, using a VPN shifts the unsecured stuff over to the VPN.
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