We find public WiFi networks in airports, hotels, shopping centers, parks, cafes, etc. They are attractive to users for obvious reasons: they are free, easy to access, since we do not require a password to use them, and we save our phone data. But what makes them tempting for users also makes them for cybercriminals. Despite its benefits, Using public WiFi networks has its risks. It would be best not to use them, but if you have no other option, it is important that you are aware of some tips to protect your information whenever you use public WiFi networks.
We want to talk to you about this in this post, about some tips so that you can use open WiFi networks without worrying about the dangers. But, we also want to make it clear to you What are you exposed to every time you connect to them?. Let's start here.
What are the dangers of using public WiFi networks?
Although we feel that using free WiFi is useful because it gets us out of trouble, it comes with several dangers that can compromise our online security. Since these networks do not require authentication, they are a easy target for hackers. They can access connected devices without any restrictions.
The first risk we want to talk to you about is being a victim of an attack of "man in the middle" (Man-in-the-Middle). In this type of attack, the hacker positions himself between the user and the server. It intercepts and steals transmitted information, such as login credentials or financial data. This attack can be carried out using a malicious router or if vulnerabilities have been detected in the configuration of a legitimate network.
The second threat, very common on public networks, is "sniffer«. These are tools that collect all the data that passes through the network to analyze it and search for sensitive information. These attacks can expose passwords, personal information, and even credit card data, a practice known as "carding."
Finally, we cannot fail to mention that public Wi-Fi networks are a favorable medium for install malware on connected devices, since hackers can easily access and install malicious software that can steal information or damage your computer.
How to protect your information when using an open WiFi network?
- Turn off automatic connection. Go to your phone's settings and disable this option to avoid inadvertently connecting to unsafe networks.
- Whenever you can, access web services through a browser instead of apps, as browsers typically use the HTTPS protocol, providing an additional layer of security.
- Use a VPN (Virtual Private Network) since it creates a secure "tunnel" for your connection and thus protect your data from possible attackers. Choose a reliable VPN service, preferably a paid one, to ensure greater security.
- Do not carry out banking transactions or access services that require passwords while connected to a public WiFi network.
- Activate two-factor authentications in all services that allow it. This adds an extra layer of security, even if someone manages to obtain your password.
- Turn off WiFi of your device when you are not using it to minimize the time it is exposed to potential risks.
- Always install the latest updates to your system operating system and applications, since they usually include important security patches.
- Avoid accessing important files on public WiFi networks.