Mi Smart Share gives you an option to hide your computer off the network. So that nearby computers won't be able to search for your computer on their Mi Share app. You will see a Green circle/dot on the title bar, which indicates the current discovery status. By default, the discovery status is set to 'Online (Green),' making you visible to anyone who uses Mi Smart Share on their computer. You can click on the dot to change it to 'Hide (Orange),' which will hide your computer, but you'll still be able to see other nearby devices. Or set the status to 'Offline (Grey)' to log off from the app completely.