To set the password that restricts access to ColdFusion Administrator pages:
Click Security>CF Admin Password in the ColdFusion Administrator navigation frame. The Administrator password page appears.
Enable the Use a ColdFusion Administration Password option by putting a check in the check box.
In the New Password text box, enter a password using a maximum of 20 characters.
Confirm your new password in the Confirmation text box. If you make a mistake and enter passwords that do not match, you see an error message.
Click Submit Changes to save the password.
Note: If you use ColdFusion RDS, you have to stop and restart the ColdFusion RDS whenever you change passwords.