What is sometimes designed as a method to improve user accessibility can end up becoming a threat. This is the case with one of the features found on both mobile operating systems, Android and iOS, related to WiFi. We are referring to the ability to share both the password and the QR code that gives direct access to the WiFi network you use on your mobile device, which becomes a problem when the person who obtains it is unauthorized and does so without consent.
Although it is true that biometric authentication is required to achieve this, this is not always the case, as a numeric password or unlock pattern may be enough. That is why it is important to protect your digital privacy and security to avoid any unwanted data leaks, especially when it comes to home cybersecurity.
Dangers of mobile WiFi network accessibility
One of the things we overlook regarding the connectivity of our mobile devices is digital security and how easy it can be for a third party to access our WiFi network, and with it, potentially leak data. That is why, whether you have an Android or iOS operating system, you should take this security aspect into account. Although at first glance it seems like a feature that provides greater accessibility to the user, the truth is that it can be a threat if not properly managed. It is important to know that if someone has access to your unlocked phone, they could access both the WiFi password and the network QR code without you even noticing.
How do you access the WiFi password from your phone?
The process varies depending on the operating system.
Android (from version 10 onward):
First, you need to go to Settings → Network & Internet → WiFi, select the active network, and tap “Share.” After authenticating with a fingerprint, PIN, or pattern, the system displays a QR code and just below it, the WiFi password in plain text. This is why sharing the password carelessly can also put you at risk, as it would give access to anyone unwanted to your mobile device.
iPhone:
You need to go to Settings → WiFi, select the information button next to the network, and after authenticating with Face ID or Touch ID, the password appears visible and ready to copy or share.
Can you prevent a stranger from accessing my WiFi?
The answer is yes, and in fact, it is a fairly simple process that we encourage you to put into practice to protect your data and safeguard your privacy. You should follow these steps:
- Change your WiFi password periodically from the router settings.
- Avoid sharing the password directly; instead, generate a QR code or use the secure options of your operating system.
- Check the devices connected to the router for suspicious access.
- Disable the password sharing feature if you don’t use it. Some models allow you to hide this option in the system settings.
- Never use external applications that promise to show saved passwords, as they can compromise the privacy of your network.
If you suspect that someone may have accessed your WiFi network, don’t panic! Simply restart the router and set a new password, and you will be able to regain control of your signal.