I'm kind of worried about the macOS (10.13 High Sierra) installed on my computer. I restarted my computer because it was misbehaving with Reminders (I logged out and in to iCloud to see if Continuity would start working again and it caused some trouble). When the login window appeared I saw a Guest User which I had deactivated before. I then logged in and it was still disabled. I enabled it and restarted and now I have two Guest Users ... only the one on the left asks for a password. I might have been hacked, don't know though...
Some possibly connected information:
- I installed macports (reinstalled to the latest version)
- I installed gnupg using macports
- I ran geth (Ethereum client) (no sudo)
- I played with iCloud (log out and in)
- My HD is encrypted so I get the login before booting
Edit 2017-10-06 14:23:36:
- I turned off Firevault, I clicked the button and there was no turning around.
- I installed update 'macOS High Sierra 10.13 (17A405)' (link)
- I restarted and the multiple user login was gone
- I turned on Find my Mac and restarted... the double, nay, triple (my own account + 2 other) login was there but what I see is a little bit different.
Edit 2017-10-06 16:07:34:
- I was able to hide the "Other..." login option by disabling the root login (System Preferences->Users & Groups->Unlock (bottom left)->Login Options->Join->Open Directory Utility->in Directory Utility Unlock (bottom left)->In Edit Menu, select Disable Root User)
- When I enable Guest User, the root user gets enabled.
- When using the Guest User and then login out, the computer freezes into a black screen with the pointer.