Staying safer using public Wi-Fi


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Staying safer using public Wi-Fi

A relaxing evening reading the news on a tablet device

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During this activity, you'll learn some important tips for keeping your personal information, and your device, safer when using public Wi-Fi. Because anyone can join a public Wi-Fi network, there is a small risk someone might try to steal information.

Safety on public Wi-Fi is mostly about paying attention to what you're doing.

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Risks of using public Wi-Fi

To make public Wi-Fi easy to join and use, the network is less secure than your home Wi-Fi. The most serious risk when using public Wi-Fi is the potential to have personal information stolen, such as your full name, date of birth or other details which could be used in identity theft.

Another risk is that you might accidentally reveal your banking details or PIN, or, if you use a credit card on public Wi-Fi, those details could be used to run up debt against you. However, all these risks can be avoided with some common sense rules to follow.

Public Wi-Fi is less secure than your home Wi-Fi network
There are two different types of public Wi-Fi networks: open and semi-open

Types of public Wi-Fi

There are two main types of public Wi-Fi, and one is usually safer than the other. An open Wi-Fi network doesn't require you to enter a password, so can be less secure. A semi-open network requires a password, so can offer more protection against online threats.

Open public Wi-Fi networks

Open Wi-Fi networks are common in big shopping centres, airports and public transport centres. You don't need a password to use them, so they can be less safe.

Open networks are more likely to send you ads, which may harm your device, or try to get you to give personal information to a website.

Free public Wi-Fi usually comes with some sort of advertising
Always be sure to read the terms and conditions of any free Wi-Fi network so you know what to expect

Semi-open public Wi-Fi networks

A semi-open network requires you to enter a password and so they tend to be more secure than an open public Wi-Fi network.

Semi-open networks are more commonly used in small locations, such as cafes and libraries.

Safe things to do on public Wi-Fi

On public Wi-Fi, it's possible that other users might be able to see what you do online. However, if you stick to using public Wi-Fi for web browsing and looking up basic information, and never enter any personal details at all, it's unlikely you'll be at any risk.

Here's a table that shows some things that are safe, and very unsafe, to do while connected to a public Wi-Fi network.

A handy checklist for safe and unsafe practices when using public Wi-Fi

Good public Wi-Fi habits

Here are some common sense habits that can limit the risks of using public Wi-Fi.

  • Limit your activity to browsing the internet. Don't log into any banking websites, email or accounts you have and don't buy anything online.
  • Read the terms and conditions before agreeing to use any public Wi-Fi network. These may ask for your name and email address, which can be shared with companies that want to send you ads. This is common though and is often part of using a public Wi-Fi.
  • Avoid online activities that require you to enter personal information.
  • Stick to websites with secure connections. Website addresses that display https:// and a padlock indicate the connection is encrypted for additional security.
  • If you feel uncertain or uncomfortable, switch off Wi-Fi in your device settings or completely switch off your device.


You've reached the end of the Staying safer using public Wi-Fi activity. You've learned that by following some simple rules, you can use public Wi-Fi and keep your personal information secure while out and about. If you're ever concerned about public Wi-Fi, you don't have to use it, you can use your mobile phone data instead. Read our course on Mobile networks to learn more.

Up next is the activity called An example of using public Wi-Fi, where we'll take you step-by-step through the process.

A couple checking what movies are on this afternoon at the local shopping mall