Chrysanthi Rausch was taking a nap on her couch two months ago when she got a call from a number she didn't recognize.
On the other end of the line was a woman who said she worked for KeyBank, Rausch's local bank, calling to alert her of fraud in her account.
"They wanted me to verify my identity through a text code. So they sent me a text, and then I read the six numbers back," said Rausch, 30, of Columbus, Ohio.