Prosecutors in New York indicted 18 people for operating a bank fraud and identity theft scheme that resulted in the cashing of more than 1,000 counterfeit checks at several large banks, according to Reuters.

The 227-count indictment accused the defendants of collecting customers’ personal data with the help of bank employees they recruited for the operation, and using the data to manufacture thousands of fake checks.

The Reuters article says at least 17 banks were targeted, and at least 1,017 counterfeit checks were deposited in Manhattan branches. Among the roughly 350 compromised accounts were those of New York City’s police department, board of education, finance department, housing authority and transit authority, as well as corporate accounts of Bed Bath & Beyond, designer Diane von Furstenberg, Cablevision Corp’s Madison Square Garden and several hospitals.