How to set a lock message on the login window of your Mac

You can set a custom message to appear at the bottom of the login window.

The login window appears when you're logged out of your macOS user account. Depending on your Security & Privacy preferences, it may also appear when you wake your Mac after sleep or screen saver begins. In the example below, ”Welcome to my Mac” is a custom lock message.

How to set a lock message

  1. Choose System Preferences from the Apple menu (), then click Security & Privacy.
  2. Click the lock  and enter your administrator name and password.
  3. In the General tab, select ”Show a message when the screen is locked,” then click Set Lock Message.
  4. Enter your message in the text field, then click OK.

Learn more

  • If your IT department configured a lock message from the command line or by using managed preferences with Workgroup Manager or Profile Manager, your lock message might not appear.
  • You can also set a policy banner that appears at login, and a screen saver message that appears when your Mac is left idle.
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