Changing your domain password
Your domain password is the password you use to log on to your CPanel. This is useful to occasionally do to maximize your site security. You should always change your password if you think someone else has access to your account.
To change your domain password:
Click on the Change Password link in the Account Settings area.
Enter your current password in the Old Password field.
Enter your new password in the New Password and New Password (again) fields.
Click on the button. Your password has now been changed.