Cash For Loans

How does Check Into Cash (and others) work? ie. how do they not get ‘scammed’ ?
When Check Into Cash loans you money, how do they protect themselves from being scammed? For example, on their site description via search engine it says this : “Check Into Cash offer cash advance and payday advance services either online or through its 1250 payday advance centers nationwide.”
How do they not get scammed by doing this online?
Because they gain the ability to debit your account when the loan is due.