"I walked halfway to the ATM at the branch, and what I realized is, every time I did that, every time I left my wallet," said Weidler, an analyst active Evangelical Christian Credit Union in Brea, California
However, he added, "I never lock my phone in my office."
And he began to invent a system to use a mobile phone to authenticate ATM transactions.
The process, he designed will allow members to register their phones at a branch of the case. A member then types in the phone number at the ATM instead of sliding a card. The credit union sends a text message to the phone, and the member replies, verifying that the phone is in the proper user's possession. The member would provide further authentication by typing a PIN on the ATM's keypad. The system eliminates the need to use a card at the ATM.