Is public Wi-Fi safe? The risks you need to know

Public Wi-Fi feels convenient, but it’s not always safe to use. The biggest problem with most public networks is that they use weak security or no encryption at all. Encryption protects the data traveling between your device and the internet. Without it, others on the same Wi-Fi network can observe or intercept some of that traffic.

You’ll find free networks in many places, including airports, hotels, and coworking offices. They make it easy to get connected for all your online needs, but it’s important to understand the risks of using public Wi-Fi in any location. A bit of extra knowledge makes it so travelers and everyday users alike can protect their digital privacy.

Fortunately, you can stay safe on Wi-Fi if you’re vigilant and follow some practical advice. A few simple habits can make a big difference. In this guide, we’ll break down the key risks and show you practical ways to stay protected on public networks, whether you’re traveling abroad or just at a shopping mall downtown.

Why public Wi-Fi can be risky

It’s difficult to ensure complete security on public sources of internet. It doesn’t matter if you’re a digital nomad working from a beach bar in Bali or grabbing a coffee while checking emails at your local café. Everyone using public Wi-Fi is at risk, since open or poorly secured connections make it easier for others to monitor your traffic.

Easy access on open networks

In some cases, cybercriminals launch what’s known as a man-in-the-middle attack. This is when they secretly position themselves between your device and the internet to intercept the data you send and receive. If the connection isn’t properly encrypted, they can see the websites you visit and could attempt to collect sensitive information.

Fake hotspots and scams

Cybercriminals sometimes create fake Wi-Fi networks that look legitimate. Known as evil twin networks, they imitate real hotspots using names like “Free Airport Wi-Fi” or “CoffeeShop Guest.” Once you connect, they can route your traffic through their own system and try to steal login details or redirect you to malicious websites.

Data interception and snooping

The network itself isn’t the only source of concern. You need to make sure to protect your connection as well. On open public Wi-Fi, the connection between your device and the router isn’t always encrypted. Similarly, if a website uses HTTP instead of HTTPS, your data isn’t encrypted while it travels between your device and the site. HTTP sends information in plain text, which makes sensitive details accessible.

Is public Wi-Fi ever safe?

Free hotspots appear in places we pass through every day. These locations make it easy to connect on the go, but they also create situations where your data may be vulnerable.

Best practices for public Wi‑Fi safety

A few simple precautions can go a long way to staying safe on public Wi-Fi.

• Use a VPN to encrypt your connection. A quality VPN creates a secure tunnel for your data, making it virtually impossible for others on the same network to see what you’re doing. Make sure it’s turned on before connecting to any public Wi‑Fi.
• Verify network names before connecting. Fake networks can trick you into sharing data. Always confirm the exact name of the Wi‑Fi with staff or signage and steer clear of networks with generic or suspicious names.
• Disable auto-connect and file sharing. Your device may automatically join networks or share files with nearby devices. Turn these features off to prevent unwanted access.
• Keep devices and apps updated. Updates fix security holes that cybercriminals can use to access your data. Turn on automatic updates or check regularly to make sure your apps and devices are current.
• Enable two-factor authentication (2FA). Even if a cybercriminal gets your password, 2FA adds a second layer of protection. Use it on banking and social accounts whenever possible.

What are the alternatives to public Wi-Fi when traveling?

Public Wi-Fi isn't your only choice when you're out and about. If you want to avoid the risks of open networks entirely, take a look at these secure options:

Mobile data and local SIM cards

Using your mobile data or creating a personal hotspot is usually much safer than connecting to public Wi-Fi. Your connection stays private and encrypted while it ties directly to your own device. However, data roaming can get costly if you’re traveling internationally.

To save on roaming fees, you can purchase a local SIM card to temporarily replace your usual SIM. It’s often cheaper than roaming through your home carrier, but it can be difficult to plan ahead of time. You’ll need to seek out a SIM vendor when you arrive at your destination and you might be stuck without service until you find one.

Having a second physical SIM card also brings the risk of damage or loss. Unless your phone has two card slots, you’ll have to keep track of your home SIM while abroad. Swapping SIMs often can also wear down the card or tray, which is why eSIM technology is rising in popularity.

Travel eSIMs

Travel eSIMs let you access mobile internet abroad without the need to swap physical SIM cards. You can install your eSIM before you leave home, then activate it once you land. They provide a secure and encrypted connection that works anywhere you have cellular coverage.

holiday.com eSIM offers unlimited data and partners with local networks in 150+ destinations, making it a convenient and affordable alternative to physical SIM cards and roaming fees. It's a seamless way to maintain your digital security across borders.

Stay safe while you stay connected

Most of us will connect to free Wi-Fi without thinking twice if it’ll help us check map directions or share photos. Public networks can be useful in a pinch, but they often fall short in terms of security. This is especially notable when you’re traveling, as the risks and stakes are both higher.

There are safer ways to access the internet when you’re abroad and need to rely on Wi-Fi, such as using a VPN to protect your personal info. Mobile data solutions like travel eSIMs are even better, letting you avoid crowded, unsecured hotspots altogether. Whichever option works best for you, be mindful of our safety advice when using the internet on the go.