I rebooted my Mac yesterday after installing the Apple update TS4088. Even though I disabled Guest Logins in my Users Preferences and have enabled FileVault 2 since the start, I am able to see Guest Login which is showing the following notice
The computer will restart to a secure, safari only system for the guest user
Is there a way to disable the Guest user ? The whole drive is supposed to be encrypted ideally, but looks like there is a bug ?
Related Questions/Articles:
File Vault 2 – Apple KB article
Can FileVault show the login window as 'name and password', not 'list of users'?
Unable to create Guest Account after enabling FileVault
How to create a pseudo-guest account in Lion with FileVault 2?
Best Answer
How to disable that “Guest User” from appearing at the OS X 10.7.2 login screen
This prevents the Guest User account from being visible at the login screen both during reboot and at the login screen. Again, it’s highly recommended to keep this enabled for security purposes, but if your Mac is locked down with a security cable or you don’t have any use for Find My Mac, you could disable this and not feel too bad about it.
If you haven’t tried it yet, clicking on the Guest User account gives you this message:
This computer will restart to a secure, Safari-only system for the Guest user.
The reboot process is quick and opens directly to Safari, there is no access to anything else. No Finder, no preferences, nothing.
Source: osxdaily