The personal information of nearly 2,000 Rhode Islanders who receive unemployment, disability, or child support assistance electronically may have been exposed during a recent security breach. The breach at JPMorgan Chase last summer could have exposed information such as addresses, phone numbers, dates of birth, and bank account numbers. The state announced Monday that there is no evidence that anyone’s information has been used by those behind the computer breach. Some 1,850 Rhode Islanders could have been affected by the breach. Officials said they are looking into why it took the bank two months to inform the state about the breach.