In this article AJR discuss – Is Somebody Using Your WiFi?
There’s no doubt about the convenience of using wireless in your home or office. However, you don’t want just anybody hopping on your WiFi, using your network, and breaching its security. And, having a unique password doesn’t mean you are immune to this problem. If you ever notice that your connection is much slower than usual, it’s worth taking a peek at just how many devices are connected to your wireless network.
You can download and install a program aptly called “Who Is on Your WiFi” to know if there are other people connected to your hot spot who should not be. The free version is sufficient to detect intruders, but there are also paid versions with extra features like text notifications, audit logs, etc. Once you install the application, all you have to do is follow the tutorial to run a scan of your network and review information about devices that are linked to your connection.
Initially, you may not recognise which MAC and IP addresses correspond with which device, but there’s an easy way to identify them. Turn off all of your devices, then turn them on one by one. If you only have one known device connected to your WiFi, and the “Who Is on Your WiFi” application is showing more than that device, it’s a safe bet someone is sharing your Internet connection. Take the appropriate measure of immediately changing your wireless password and only share it with family or designated individuals you want to have it. For future scans, you can label each of your devices as something easily recognisable, such as My Phone or Dad’s Laptop, to facilitate the identification of intruders.