Require a Login Password
By default, when you start up your Mac you are logged into your user account automatically. This is risky because if someone steals your computer they will have easy access to all of your data. If you require a login at startup your data is a bit more protected. To change this, follow the directions below:
- Open System Preferences.
- Find the System section, click on Accounts.
- Click on the lock in the lower left corner and enter your password.
- Click on the Login Options button (at the bottom of your account list).
- Click on the Automatic Login drop down menu and select Off.