Abstract: A mobile application for sending alerts to a bank's customer is provided. The mobile application allows a customer to receive alert notifications regarding transactions on his or her bank or credit card accounts when a debit or credit card associated with the account is used. The mobile application server and adjoining intermediate database, which stores the customer's alert information, is in communication with the bank's or ISO's server and their adjoining customer database to receive transaction data. The mobile application server sends alert notifications through a customer's or user's mobile app after processing the communication, which displays the information on the customer's smartphone or electronic tablet. Customer may choose to send a response back through the mobile application server to the bank's or ISO's server and their adjoining customer database, reporting suspected fraud or approving the transaction using the customer's unique pin code or password.