When you initially setup a new Mac you run through a program called Setup Assistant and create the initial account on your Mac known as the Administrator after which you are then logged into your Mac.
Macs with only one Account
If you are the only user on your Mac you have the option to configure Mac OS X to ask for login credentials otherwise by default your Mac will log anyone into your account when they turn on your Mac. It is recommended to implement a quick and easy to configure security feature that will disable automatic logins.
The next time you turn on your Mac you will asked to enter your password. Imagine if you didn't implement this very simple lock down and your Mac was stolen. Anyone would be able to access your files and anything stored on the hard drive and/or iDisk.
Macs with more than one Account
A Mac with multiple accounts is recommended, even if you are the only user. The moment you have setup more than one account and power up your Mac, you (or anyone who turns on your Mac) will presented with the Mac OS X Login Screen even if the "Disable automatic login" feature has not been enabled in System Preferences.
If Fast User Switching is Enabled
Fast User Switching is a feature that can be enabled for Macs with multiple user accounts that allows one user to log in without requiring another user to log out. If enabled, the Fast User menulet will be visible.
If you are the only user on your Mac you have the option to configure Mac OS X to ask for login credentials otherwise by default your Mac will log anyone into your account when they turn on your Mac. It is recommended to implement a quick and easy to configure security feature that will disable automatic logins.
- Launch System Preferences
- Click Security
- Enable the checkbox next to "Disable automatic login"
The next time you turn on your Mac you will asked to enter your password. Imagine if you didn't implement this very simple lock down and your Mac was stolen. Anyone would be able to access your files and anything stored on the hard drive and/or iDisk.
Macs with more than one Account
A Mac with multiple accounts is recommended, even if you are the only user. The moment you have setup more than one account and power up your Mac, you (or anyone who turns on your Mac) will presented with the Mac OS X Login Screen even if the "Disable automatic login" feature has not been enabled in System Preferences.
If Fast User Switching is Enabled
Fast User Switching is a feature that can be enabled for Macs with multiple user accounts that allows one user to log in without requiring another user to log out. If enabled, the Fast User menulet will be visible.
- Click on the Fast User Switching menulet
- Select another user to login as