Richland County authorities have made numerous arrests in a scam they say cost local banks some $20,000.
Seven suspects have been charged with offenses such as bank fraud and forgery, but the Sheriff's Department financial crimes unit expects to arrest 23 people before it's done.
Sheriff Leon Lott says organizers of the scam recruited participants by offering them cash if they'd open accounts at TD, Wood Forest and Well Fargo banks.
Participants would get starter checks and debit cards from the banks, then write checks or withdraw cash to put the accounts into overdraft.
Authorities are using video surveillance from the banks to help track down the culprits.
Some of those arrested claim they didn't realize they being recruited for wrongdoing, but the sheriff says people don't just come up to you and hand over money without strings attached.