"Other" user appearing on login screen
Just this morning when I on my Macbook Pro as per normal, I noticed an additional "Other" user showing up on my login screen.
So I looked it up online on what it is and all that and checked to see if I have enabled root etc. but I haven't.
Clearly it shouldn't miraculously appeared by itself but I can't seem to find the cause nor the solution.
Some solutions suggested that the "Allow network users to log in at login screen" may also be a cause but this option was not there/missing in my Users & Groups > Login Options.
Does anyone have a possible explanation to this? It'll be much appreciated. Thank you.
MacBook Pro (13-inch Mid 2012), OS X El Capitan (10.11.2)