On most of the networks, the access is restricted based on the IP address thus, when you go offline, the hacker can use your MAC address and access the system as you. This is a threat, especially if you are on a public WiFi network like airports, hotels, or any coffee shops out there that carry free WiFi these days. This gave hackers a chance to keep track of your devices as well as on you too.
Anyone out there on your local Ethernet network can quickly peek in and see your MAC address with the help of simple and easy tools. Why should you change your MAC Address on Android?
1 Why should you change your MAC Address on Android?.
