Ensure Automatic Login Is Disabled

How it is checked

Audit method: Shell command

/usr/bin/osascript -l JavaScript <<'EOS'
function run() {
  let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow').objectForKey('com.apple.login.mcx.DisableAutoLoginClient'))
  let pref2 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow').objectForKey('autoLoginUser'))
  if ( pref1 == 1 || pref2 == null ) {
    return("true")
  } else {
    return("false")
  }
}
EOS

Expected output

true

How it is fixed

Fix method: Guidance or infrastructure patch

Graphical Method: Perform the following steps to set automatic login to off: 1. Open System Settings 2. Select Users & Groups 3. Set Automatic login in as... to Off Terminal Method: Run the following command to disable automatic login: % /usr/bin/sudo /usr/bin/defaults delete /Library/Preferences/com.apple.loginwindow autoLoginUser Profile Method: Create or edit a configuration profile with the following information: 1. The PayloadType string is com.apple.loginwindow 2. The key to include is com.apple.login.mcx.DisableAutoLoginClient 3. The key must be set to <true/> Note: If both the profile is enabled and a user is set to autologin, the profile will take precedent. In this case, the graphical or terminal remediation method should also be applied in case the profile is ever removed.

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target macos