How To
How to detect a Wi-Fi thief

- September 29, 2019
- Updated: July 2, 2025 at 4:30 AM

Your Wi-Fi network at home is sacred. Allowing a friend to access to your Wi-Fi network is now the equivalent of letting them getting something out of your fridge.
When someone hijacks your Wi-Fi and slows it down, it is not only a breach of trust but a breach of privacy. However, we have the solution:
Two key applications
In order to find out if someone is accessing your network, we are going to use some applications: IP Tools Wi-Fi Analyzer and Who’s On My Wi-Fi.
IP Tools Wi-Fi Analyzer allows you to configure everything in the fabric of your internet connection. Likewise, it is also able to show if there are technical difficulties. You will know if there are connection failures as well. It also tells you which devices are currently connected to your network.
In the case of Who’s On My Wi-Fi, the functions are more limited than in IP Tools Wi-Fi Analyzer. However, the name says it all. It sees who is on your Wi-Fi connection and takes the appropriate measures. We recommend downloading both applications, but we will use the latter to perform the analysis.
Open Who’s On My Wi-Fi and look for the network to which you are connected. In a matter of seconds, the application shows all the devices that are using your internet connection. From here, you can kick trespassers off your virtual lawn. You need to enter your network information to do so.
Staying protected
Another way to do this is by changing the router password. Once you modify the password, that person cannot connect again.
You pay for your Wi-Fi connection with your hard-earned money, so you should get to decide who is using it. If someone is going to try and sneak into your system, don’t be afraid to virtually go “Gran Torino” on them.

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Read Now ►Mike Braun is a technology editor for Softonic. He spent his childhood being frustrated by Battletoads, then moved on to being frustrated by that lava level in Aladdin for Sega Genesis. A graduate of Florida State University, he now lives in Portland where he's working on a science fiction novel series and drinking too much coffee.
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