What key command immediately logs you out of your user account?

The key command that immediately logs you out of your user account is Command-Shift-Option-Q. This specific combination is designed to not only log you out but also to bypass any prompts asking to confirm the action, ensuring a quick exit from your user session. This can be particularly useful in situations where you need to quickly secure your account, such as when you're stepping away from a shared computer.

Understanding the functionality of this command highlights the importance of keyboard shortcuts in efficiently managing user sessions on macOS. Other key commands may perform different functions, such as activating another feature or logging out without the same immediacy or confirmation bypass. Recognizing the unique purpose of Command-Shift-Option-Q can help users navigate their system more effectively.