This article explains how to change the lock screen on a Mac. You can use this feature to customize your lock screen with a unique image and message, or disable it altogether.
How to Change Lock Screen Wallpaper on Mac
Enabling a lock screen on your Mac when you’re not using it is the easiest way to protect your data and prevent unwanted users from snooping around. If you already lock your Mac regularly and want to personalize it, you can start by changing the lock screen on your Mac with an image of your choice.
To get started, you'll first need to download the image you want to use for your custom lock screen and resize it to best fit your Mac's resolution. Once you've saved the image you want to use, follow these steps:
Click the Apple icon in the top left corner of your screen and select About This Mac.
