When one decides to no longer use desktops and completely moves everything to the mobile space, especially with security in mind, what are some recommended setups for using a keyboard and mouse at the same time? There are some claims that bluetooth is inherently unsecure. Turning on the usb port leaves a great attack surface, and since all mobile devices have only one usb port, there is no way to use a cable keyboard and mouse at the same time. Any ideas?