Locking your Mac’s display (or “sleeping” the display) can be a great security measure when paired with a user account password. While it won’t prevent the outright theft of your Mac, it can be a quick and easy way to prevent nosy family members or coworkers from getting access to your data. In order for a Mac lock screen command to be effective, you’ll first need to configure System Preferences to require your user account password when unlocking or waking…