The ChexSystems Inc Company is located in Woodbury, MN that shares information with credit unions, banks and other financial institutions that may have an interest in check fraud and identity theft. ChexSystems is a credit bureau that holds information on you and other citizens, you can find out what information they hold on you by asking to see your credit report – which by law you can do for free once a year. When financial institutions think that a person is a financial risk, either because checks have been returned unpaid due to insufficient funds, or because they believe there is fraudulent activity on the account, they notify ChexSystems. ChexSystems may inform financial institutions that report to them of any other items on an individual’s credit report, which can result in the bank freezing your checking account without prior notice. Financial institutions differ on what they regard as ‘cause’, i.e. cause for concern regarding a particular individual and their account.