Greg starts to get security issues after he installs an app called Gnome on his Linux machine. He's getting warnings of multiple logins. Leo says that he likes Gnome and it's not likely a security issue happening. Gnome is a graphical user interface, not the operating system itself. And if there's remote access to that Linux box, that means there's a server running in the background that's allowing remote access. If you don't use it, you can easily turn it off.