While the convenience is undeniable, we need to ask a key question: Are these networks protected against cyberthreats? Or are they a hot spot for suspicious online activity?

If you want to enjoy the perks of free internet without risking sensitive digital information, our practical guide will help you access public Wi-Fi in Portugal safely.

Public Wi-Fi: Why is it risky?

Even in a country as safe and welcoming as Portugal, which has received close to 33 million tourists as of 2025, public Wi-Fi comes with the same inherent risks as in any other country. Unfortunately, open networks have minimal security protections, which makes it easier for hackers to:

  • Hijack your digital traffic and steal login credentials or personal details;
  • Distribute malware by exploiting vulnerabilities on connected devices like your laptop or mobile phone;
  • Create fake hotspots that mimic legitimate ones, tricking users into connecting and giving out their login credentials.

When you understand these risks, you can take the necessary steps to avoid them. The good news is that the measures you can take are simple and effective, and they will help you enjoy Portugal and its many connected spaces.

Encrypt your browsing by using a VPN

A Virtual Private Network (VPN) is one of the most effective tools for securing your connection on public Wi-Fi. In many companies, it’s an essential step to protect sensitive information. It works by encrypting your internet traffic and masking your IP address simultaneously: even if someone tries to intercept your data, it’s unreadable.

If you frequently connect to public Wi-Fi, whether it’s in Lisbon’s pretty co-working cafe or Algarve’s luxurious beachside hotels, getting a VPN that you can trust is critical. A service by Surfshark offers encrypted browsing and hides your IP address. It makes it extremely difficult for anyone to access your information online.

When choosing a VPN for Portugal, you should look for one that offers:

  • Strong encryption (AES-256, or better);
  • A no-logs policy for privacy (they don’t keep your information);
  • Fast local servers for streaming and remote work (in case you want to access your favorite TV show from your home country);
  • Multi-device support is available if you work across phones, tablets, and laptops.

Don’t trust every network you see

Whenever you can, try connecting to Wi-Fi networks from reputable sources, like your hotel, well-known cafes, and even official municipal networks in big cities like Lisbon and Porto, avoid connecting to networks with strange or generic names at all costs, as these can be duplicates made with malicious intentions.

Before connecting, make sure that you check with the staff about the correct network so that the name you see is legitimate.

Enable HTTPS everywhere you can

When browsing, check that every website you visit starts with https://. The “S” stands for “secure”, so that should be an extra reassurance in case you’re doubtful. If you see the lock icon on the left, that’s also a good sign. But, for added peace of mind, you can always install browser extensions that force HTTPS for every site, when available.

Even with these protections, remember that you’re not completely protected against the dangers of public Wi-Fi. HTTPS only secures the connection between your device and the website, which is why having a VPN is so important.

Turn off auto-connect features

Many of the devices we own automatically connect to the Wi-Fi networks stored within their memories. While this is convenient, it can also increase the risks, especially if a contaminated network shares the same name as a legitimate one you’ve used before.

Go into your phone or laptop settings and disable “Auto-Join” or “Connect Automatically” for public networks. Instead, manually select the Wi-Fi you want to use each time, and immediately disconnect if you notice something suspicious.

Don’t forget to update your devices’ software.

Security updates might be annoying to some, but they’re crucial to keep your devices protected. They often deal with the newest threats and patch vulnerabilities that hackers eagerly exploit. Before your trip, consider updating:

• Your operating system: Windows, macOS, iOS, or Android;

• Your browsers;

• Your antivirus software;

• The apps you use for communicating with friends, work, or the bank.

If you find the option, set up automatic updates to never miss a day without the latest security patch.

Avoid accessing important, private accounts.

If you’re connected to a public Wi-Fi, avoid logging into your online banking or giving out credit card details as much as possible. If you can’t help it, make sure you’re connected to a VPN first.

When you want to check out the news, find directions, or message your friends, public Wi-Fi is mostly okay, but for anything more sensitive, secure your connection.

Disable Sharing and AirDrop

Before you connect to an unsecured or public network, turn off printer sharing, file sharing, AirDrop if you’ve got an Apple device, or any other features that allow other devices to find yours. Doing this reduces the risk of someone sending your unwanted files or even malware through shared folders.

On laptops, you can switch your network from “Public” to “Untrusted”, and this automatically blocks suspicious connections.

To sum up

Portugal is a fantastic country with a rich culture and activities to enjoy. You’ve got countless places to work, browse, and stream while enjoying a sea breeze or a good, strong coffee. But whether you’re a digital nomad, an expat, or a tourist, staying safe while online should be one of your priorities.

Combining good habits with tools like a reputable VPN ensures you can enjoy your digital life risk-free. That way, you can focus on what’s important: the culture, the landscapes, and the people, instead of worrying about who might be trying to steal your sensitive information.