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Last updated: June 18, 2026
To keep your device secure on public WiFi, connect only to verified networks, turn off file sharing, use a VPN, stick to HTTPS sites, keep your firewall and antivirus running, switch WiFi off when idle, and avoid sensitive logins.
TL;DR. Public WiFi in airports, cafes, and hotels is convenient but risky, because you share the network with strangers who could intercept your data. The good news is that a few habits remove most of the danger. Use trusted networks, run a VPN, keep security software on, browse only HTTPS sites, and save banking or work logins for a private connection or your phone hotspot.
If your team works from cafes, airports, or client sites, public WiFi safety is part of your broader cybersecurity strategy, not a separate problem.
- Use trusted, password protected networks
- Turn off file sharing and AirDrop
- Keep your firewall, antivirus, and anti-malware running
- Connect through a VPN
- Stick to HTTPS sites
- Turn WiFi off when you are not using it
- Avoid public WiFi for banking and sensitive logins
One of the first things people ask when visiting a new establishment is, “What’s the Wi-Fi password?”
Free Wi-Fi, especially in airports, cafes, libraries, and other public places can be lifesavers, especially when you’re traveling and need to get a little work done, communicate with coworkers, or perhaps look up directions. But with free Wi-Fi, even with password protected connections, there is always a security risk since you’re sharing the network with several others at the same time.
The thing is, you don’t know how the other people connected to the network, and more importantly, what they’re capable of doing on the shared network. It’s possible that some of them could be hackers whose motive it is to connect to public Wi-Fi connections for the purpose of stealing sensitive data. Knowing how to protect your business from cyberthreats starts with understanding how these attacks actually happen.
A 2023 Forbes Advisor survey found that 40 percent of people had their information compromised while using public Wi-Fi, most often on airport or restaurant networks. Security researchers have also shown how easy it is to break into a public Wi-Fi network.
Before you get scared and swear off public Wi-Fi forever, there are a few things you can do to keep your device secure while using public Wi-Fi.
Use the Right Networks
Not all public Wi-Fi networks are created equal. For instance, a password protected Wi-Fi network from a coffee shop will most likely not only provide faster internet but be more secure than the ‘Free Airport Wi-Fi’. There are also easy ways to identify which networks are secure and which ones are doubtful. Some Wi-Fi connections are purposely left unsecured to lure in users, so avoid ones that advertise or say ‘Free Wi-Fi here’ unless you know who it belongs to.
Turn Off Sharing
On your home network, sharing may be turned on so that family members can access and easily view files, photos, and video. But when you’re out and using a public Wi-Fi network, it is best to keep that setting off as a precautionary measure so that other devices may not have access to your files (and to avoid receiving files from unknown sources).
Even MacBooks, which some people think are impenetrable by viruses, aren’t exempt from cyber attacks. Reports say the newer models are more vulnerable to malware attacks than before. If you’re using an Apple device, take the extra precautionary measure of turning off AirDrop while using Wi-Fi in a public place.
Have Security Programs in Place
Make sure that your computer has the basic security programs in place, such as a firewall, antivirus, and anti-malware program. Many operating systems come with a built-in firewall which may be powerful enough to ward off most attacks. An easy way to protect your device is to ensure that it is switched on. Also, while using public Wi-Fi, ensure that your security programs are running and up-to-date. If managing this across a whole team feels like too much, that is exactly what managed IT services handle for you.
Consider Using a VPN
A VPN, which stands for Virtual Private Network, is a tool that you can use to access the Internet in a private and secure way. It works like a tunnel that connects you to the internet privately and anonymously. There are many different options out there, but all work under the same concept of protecting your connection. On public WiFi, a VPN is the single most effective protection because it encrypts your traffic end to end.
Visit Secure Sites
When accessing the internet using public Wi-Fi, it’s best to visit websites that are secure. You will know which sites these are because they’re marked with a secure hypertext transfer protocol (HTTPS). These sites are made secure through the use of SSL (secure socket layer) certificates, which is a technology that establishes a secure connection between a browser and web server.
Google recognizes the importance of secure websites and shows security warnings for sites it believes are not completely secure. If you’re using Google Chrome as a default browser, you will notice that it marks websites as ‘Not Secure’ when they don’t use HTTPS. Keep in mind that HTTPS protects traffic to that specific site, but it does not protect you from fake hotspots or malware, so treat it as one layer rather than the whole defense.
Turn off Wi-Fi When not in Use
When you aren’t surfing the internet, turn off the Wi-Fi on your device. It will not only save you from draining your battery, but will also protect you from threats in places where there are networks you’ve automatically connected to before. On that note, ‘forget’ Wi-Fi networks you’ve disconnected from after using them.
Avoid Using Public Wi-Fi
Only access internet using public networks if you really need to, and while you’re at it, only visit general information sites. As much as possible, do not access internet sites where hackers can get sensitive information such as online banking sites and even your email.
If you must use the internet, why not create a mobile hotspot through your phone or Wi-Fi device? A personal hotspot is a private, password protected network that you control, so it removes the shared network risk that makes public WiFi dangerous in the first place. Just make sure you watch your data usage and bring a backup battery or charger along for the ride with your phone.
What Is Safe to Do on Public WiFi?
Not every activity carries the same risk. Use this quick guide to decide what to do on the open network and what to save for a private connection.
| Generally safe on public WiFi | Save for a private connection |
|---|---|
| Reading news and general browsing | Online banking and bill pay |
| Streaming over HTTPS | Shopping with saved cards |
| Checking maps and directions | Logging into work or email systems |
| Browsing through a VPN | Entering passwords on non-HTTPS sites |
Public WiFi Security, Answered
Is it safe to use public WiFi without a VPN?
Not really. Without a VPN, anyone on the same network can potentially intercept unencrypted traffic. A VPN encrypts your connection end to end, which is why it is the single most effective protection on public WiFi.
Can hackers really steal my data on coffee shop WiFi?
Yes. Common attacks include man in the middle interception, fake evil twin hotspots, and packet sniffing. These let attackers capture logins, session cookies, and anything sent over an unsecured connection.
What should I never do on public WiFi?
Avoid online banking, shopping with saved cards, and logging into work systems without protection. If you must, use a VPN or your phone’s mobile hotspot instead of the open network.
Does HTTPS make public WiFi safe?
HTTPS helps but does not make you fully safe. It encrypts traffic to that specific site, yet it does not protect against fake hotspots, DNS spoofing, or malware. Treat HTTPS as one layer, not the whole defense.
Is a mobile hotspot safer than public WiFi?
Generally yes. A personal hotspot is a private, password protected network that you control, so it removes the shared network risk that makes public WiFi dangerous in the first place.
Want to learn more?
Public Wi-Fi is not as safe as everyone would assume, but if you take the necessary precautions, you can significantly reduce the risk of your information being exposed to others.
Honestly, no setting makes public WiFi as safe as your own office network. At Uprite, we see the same pattern with Houston businesses. A breach rarely starts with a sophisticated hack. It often starts with someone checking email on an open airport network without a VPN.
If you would like to find out more about the risks, and how to protect your business, call Uprite at (866) 570-3065 or request a free security consultation. Our team helps Houston businesses lock down endpoints, networks, and remote connections every day.
