All you need to do is just securing your WiFi router so that others cannot use it in your absence. Actually, it doesn’t have so-called negative sides. If you use WiFi router, you should also know about positive sides as well as negative sides of a router. WiFi router is a must have gadget that every geek should has. You can use internet using one WiFi router and single data connection. No matter if, you have mobile, laptop or tablet. One internet connection can help you to connect to the web through your all devices. Nowadays, we use WiFi more than Cellular data connection. How to Enable MAC Filtering in Any WiFi Router