A Chicago man has been convicted for playing a lead role in an ATM skimming spree that impacted various banks.

Dinu Horvat, 28, was found guilty of four charges - conspiracy to commit bank fraud, aggravated identity theft, conspiracy to possess 15 or more counterfeit access devices, and conspiracy to possess access device-making equipment, according to a DOJ release.

Horvat was part of an operation that defrauded banks – like Wells Fargo and Citibank – out of roughly $5 million, impacting thousands of customers. Skimming devices developed by his co-conspirators and installed on the ATMs allowed them to record customer card data to create fake ATM cards used to withdraw cash. Thus far, 16 individuals have been arrested in connection with the criminal operation.

Horvat now faces a maximum penalty of 30 years in prison and a $1 million fine.