NORTH CANTON, Ohio (10/13/11)--Diebold Inc. has released new service that allows consumers to lock their bank cards against unauthorized or fraudulent use by sending a text message. Diebold is a CUNA Strategic Services provider. MobiTransact Card Lock allows consumers to lock and unlock their bank cards to permit or deny account use at ATMs and point-of-sale (POS) devices. Part of Diebold's MobiTransact mobile banking offering, Card Lock uses the mobile channel as an out-of-band authentication tool for ATM and POS transactions. Users send text message commands that control the usage status of their ATM debit cards. By texting “lock” to a designated number, the user locks his or her card for all future ATM and POS transactions, preventing use until he or she unlocks the card. Texting “lock ATM” locks the card for only ATM withdrawal transactions. Sending an “unlock” command opens the card for use in any transaction until the user locks it again. The mobile banking platform also informs mobile banking users about all transactions attempted with their ATM debit card. The alert message explains that a transaction has occurred or why the transaction was denied. The message also serves as a tool to alert a cardholders of suspicious or fraudulent activity and allows them to stop unauthorized withdrawals by locking their card. MobiTransact also includes mobile banking sign-up at the ATM. This allows ATM users to complete mobile banking enrollment at the terminal. Financial institutions can push customized screens to terminals, encouraging users to initiate the sign-up process. Users then enter their mobile number at the ATM and receive a six-digit code that they text back to the financial institution. To ensure security, the sign-up process provides multi-factor authentication via the account holder’s ATM card, PIN and mobile device.