Free Wi-Fi ... to join or not to join?
In today's digital age, public Wi-Fi is handy, allowing us to stay connected while on the go.
However, we need to recognise this convenience comes with significant security risks.
Using public Wi-Fi can leave your personal and sensitive information vulnerable to cybercriminals looking to exploit unsecured networks.
Here are some reasons why public Wi-Fi may not be as safe as you think.
Man-in-the-middle attacks
Hackers can position themselves between your device and the Wi-Fi network, enabling them to intercept and manipulate the data you send and receive.
This tactic, known as a man-in-the-middle attack, allows cybercriminals to steal sensitive information without your knowledge.
Imagine you're shopping online at the airport, entering your credit card details to make a purchase. Unbeknown to you, a nearby cybercriminal intercepts your credit card information through a man-in-the-middle attack. They can then spend up large using your credit card.
Fake Wi-Fi networks
Cybercriminals often create fake Wi-Fi networks with names similar to real ones to deceive people into connecting.
Once connected, the crims can intercept your data or distribute malware to your device, putting your information at risk.
An example of this would be when you check into your hotel and connect to the Wi-Fi network named "HotelGuestNetwork" for streaming or online transactions.
Unbeknown to you, it's a fake network set up by a nearby cybercriminal. They can intercept your data, including credit card details and login credentials, endangering your privacy and security.
Packet sniffing
Cybercriminals can employ packet sniffing tools to monitor network traffic on public Wi-Fi networks actively. This method allows them to capture sensitive information, such as usernames, passwords, and credit card details, with ease.
Packet sniffing is like eavesdropping on a conversation, but for internet data. Imagine you're in a crowded café, and there are lots of people talking around you. If someone nearby is really good at listening, they might be able to pick up bits and pieces of what everyone is saying, even if they're not talking to them directly.
In the same way, cybercriminals can use packet sniffing tools to secretly listen in on the data traveling through public Wi-Fi networks. This means they can capture sensitive information like usernames, passwords, and credit card details from anyone using that network, without them even knowing it's happening.
Top tips for using free Wi-Fi
Sometimes, it’s necessary to use free Wi-Fi, for example if you run out of data. Where possible, put in place some extra security steps to keep your information safe.
Avoid sensitive transactions
Refrain from accessing sensitive information or conducting financial transactions, such as online banking or shopping, while connected to public Wi-Fi. Wait until you’re connected to your home or work network.
Turn off automatic connectivity
Disable automatic Wi-Fi connectivity on your device to prevent it from connecting to unsecured networks without your knowledge.
For Apple Devices: Go to Settings > Wi-Fi. Toggle off the "Ask to Join Networks" option.
For Android Devices: Navigate to Settings > Network & Internet > Wi-Fi. Tap on the gear icon next to the network you're connected to. Disable the "Auto-connect" or "Connect automatically" option.
Use a VPN
A Virtual Private Network (VPN) encrypts your internet connection, providing a secure tunnel for your data to travel through. This helps protect your information from interception on public Wi-Fi networks.
A VPN creates a secure tunnel for your data to travel through, protecting it from interception on public Wi-Fi networks.
