NEW YORK (MarketWatch) -- A group of computer hackers known as Anonymous on Monday released emails from someone the group said claimed to be a former Bank of America Corp. BAC, +0.71% employee, according to a published report. The report, from Reuters, said the emails dated from Nov. 2010 and discussed removing certain documents from loan filed for some insured properties. Reuters had reported on Sunday that the group would release the documents. Reuters said that a bank spokesman told it that the documents, from the bank's Balboa insurance unit, had been stolen and that they were clerical and administrative in nature. "We are confident that his extravagant assertions are untrue," the bank spokesman told Reuters.