Public Wi-Fi is one of the easiest ways to get online while working from a café or traveling abroad. But with convenience comes risk. Here's what you should know about the safety of public Wi-Fi, especially in places like airports and hotels, and how tools like VPNs and travel eSIM like Eskimo can help you stay protected.
Is It Safe to Use Public Wi-Fi?
Public Wi-Fi networks are typically unsecured network, meaning data traveling through them is not encrypted. Anyone else connected to the same network could intercept your activity. That includes web browsing, login credentials, emails, and in some cases, even private messages.
While many modern websites use HTTPS, which adds a layer of security, it doesn't protect all your data. Apps or websites that don't use encryption are wide open to “man-in-the-middle” attacks, where someone intercepts your traffic and steals your information. One way to avoid this risk altogether is by skipping public Wi-Fi and using mobile data through an eSIM like Eskimo instead.
What Is a Man-in-the-Middle (MITM) Attack?
A man-in-the-middle (MITM) attack is when someone intercepts the data traveling between your device and a website or app without you knowing. This is especially common on unsecured public Wi-Fi networks.
For example, when you log into your email at a café, a hacker on the same network could secretly capture your login details. In more advanced cases, they might even reroute you to fake websites or inject malicious code into what you're viewing. Using HTTPS helps, but it doesn’t fully protect you on compromised or spoofed networks. That’s why VPNs, or better yet, secure mobile data through an eSIM, offer a safer way to connect abroad.
Is It Safe to Use a Public Wi-Fi That Isn’t Password Protected?
An open Wi-Fi network without a password is especially risky. Not only is your data exposed, but attackers can also set up rogue hotspots with names similar to trusted networks (like “Free_Airport_WiFi”) to trick users into connecting. Once connected, they can monitor everything you do online; or worse, inject malware directly into your device.
If you’re in transit or can’t verify the legitimacy of a network, use mobile data via an eSIM instead. It’s encrypted, reliable, and doesn’t depend on guessing whether a hotspot is real.
Is Airport Wi-Fi Safe?
Airport Wi-Fi is notoriously unsecure. It’s a prime hunting ground for cybercriminals targeting unsuspecting travelers. Airports often offer free Wi-Fi with minimal security in exchange for convenience. Even if there’s a login page, that doesn’t guarantee encryption between your device and the server. Avoid accessing sensitive data like bank accounts, confidential file sharing or work emails unless you have extra protection.
Is Hotel Wi-Fi Safe?
Hotel Wi-Fi might feel safer, but in many cases, it isn’t. Most hotels use shared networks for all guests. This means your device could be exposed to others on the same network. A determined hacker could potentially access your personal files, steal login credentials, or intercept credit card info during a transaction.
Does a VPN Protect You on Public Wi-Fi?
Yes, a VPN (Virtual Private Network) encrypts all your internet traffic and routes it through a secure server. Even if someone is monitoring the network, they won’t be able to see what you're doing or intercept your data.
VPNs create a private “tunnel” between your device and the internet. This is one of the most effective defenses against cyberattacks on public Wi-Fi although it often comes at a slower internet speed (extra routing) and extra cost for premium VPNs.
Using Eskimo eSIM means having secure connections without sacrificing speed or paying extra fees.
Is It Safe to Use Public Wi-Fi With a VPN?
When used properly, yes. A VPN significantly reduces the risks of public Wi-Fi. It hides your IP address, encrypts your data, and masks your activity from hackers and snooping network administrators.
However, not all VPNs are created equal. Stick to reputable providers that offer strong encryption, a no-logs policy, and ideally, a kill switch that disconnects you if the VPN drops.
Is It Safe to Use Public Wi-Fi for Banking?
Without a VPN, using public Wi-Fi for banking is not a bad idea; it’s a serious security mistake. Even with HTTPS encryption, your session could be hijacked, or your login data could be captured by keyloggers or fake hotspots.
If you must access your bank account on public Wi-Fi, use a VPN and enable two-factor authentication. Better yet, wait until you’re on a secured network like Eskimo eSIM for crucial transactions such as this.
Why Is It a Good Idea to Turn Off Wi-Fi While Using a Mobile Banking App?
Mobile banking apps often rely on secure internet connections. If your phone automatically connects to a public Wi-Fi network while using your bank app, you’re at risk. Turning off Wi-Fi forces the app to use your mobile network, which is encrypted and safer by default.
You could be disconnected during your banking activity, but this simple move ensures your banking session is less vulnerable to man-in-the-middle attacks and rogue network interference.
How Common Are These Dangers?
Public Wi-Fi attacks are more common than you might think. According to Norton’s 2017 Cyber Security Insights Report, 92% of Americans admitted to taking security risks while using public Wi-Fi. Here are the most common threats:
- Eavesdropping: Unencrypted data can be easily intercepted.
- Fake Hotspots: Attackers mimic real Wi-Fi networks to lure victims.
- Session Hijacking: Hackers steal your login session without needing your password.
- Malware Distribution: Insecure networks can be used to deliver malware to connected devices.
Tips to Stay Safe:
- Always use a VPN on public Wi-Fi
- Avoid accessing sensitive accounts unless necessary
- Turn off file sharing and AirDrop/Bluetooth
- Keep your device updated with the latest security patches
- Best tip: skip Wi-Fi and use encrypted mobile data instead like Eskimo eSIM
Is Free Wi-Fi Worth the Risk?
While it’s tempting to save on data by using public Wi-Fi, especially during travel, ask yourself: is it worth exposing your private information?
The smarter alternative is to equip your phone with a travel eSIM like Eskimo, which gives you affordable roaming data in over 80 countries. It’s fast, secure, and doesn’t rely on sketchy networks to keep you connected. You’ll get peace of mind without the data roaming charges.
Here’s what sets us apart:
- Longest Validity: Every Eskimo data plan is valid for 2 years upon activation. No rush, no expiry stress. Buy once, use it whenever you're ready.
- Instant Data Transfer: Share data with friends or family using just their mobile number. No complicated portals or limits.
- Data Rollover: Leftover data? Extend it for another 2 years just by buying a new plan. You can keep it rolling forever.
- Start Anytime: Your plan only activates when you connect or transfer data. So you won’t waste a single MB before your trip even begins.
- Unlimited Speeds: No throttling. No daily caps. Just reliable, 5G high-speed data wherever you go.
- Personal Hotspot Support: Share your data with other devices. Perfect for group travel or working on the go.
- Easy Top-Up: Add more data instantly. New plans kick in automatically after the current one ends—no reinstallation needed.
- Universal eSIM: One eSIM. Global coverage. No SIM swapping, no airport kiosks, no wasted time.
- Affordable Rates: Plans start as low as $1.80 per GB. Quality connectivity doesn’t have to be expensive.
- Multiple Reinstallations: Reinstall your eSIM up to 5 times if needed, ideal for phone upgrades or accidental deletions.
What's more; you can try it for free if you have a compatible device. No purchase required.
FAQs
Can public Wi-Fi steal your data?
Yes. On unsecured networks, attackers can intercept your data, including passwords, messages, and personal info, without your knowledge.
Is mobile data safer than Wi-Fi?
Yes. Mobile networks use stronger encryption and are significantly harder to intercept than public Wi-Fi.
Do VPNs work on all apps?
Most apps are compatible with VPNs. A VPN routes all your traffic through a secure server and protects your data regardless of the app you are using.
Should I log into my email on public Wi-Fi?
Not unless you are using a VPN. Even sites with HTTPS cannot protect you from every risk on an open network.
Is it safer to use WhatsApp or iMessage over public Wi-Fi?
Yes. Both offer end-to-end encryption for messages, but using a VPN adds an extra layer of protection, especially on sketchy or spoofed networks.