- Alert: For your security, Online Banking and Mobile App passwords will need to be reset every 180 days. If you are experiencing an error message while attempting to log into the Mobile App your password may need to be reset by first logging into Online Banking. If this is the issue, upon login you will automatically be prompted to reset your password. This can be performed on your mobile device by using a browser to access the CountyBankDel.com homepage and tapping on the “Log in to Online Banking” button.