Dell discovered that Quest Software had supplied software maintenance to Melli Bank, subsidiary of Bank Melli in Iran. The maintenance occurred before Dell’s buyout of Quest. In a letter to the SEC, Dell disclosed Quest’s small but potentially worrisome banking engagement. It said that the company’s Form 10-K contained information about the business transaction worth US$169.90. Although not much, any dollar amount flowing to a technology company from a bank with ties to Iran could have raised some serious red flags. It's unclear what type of e-discovery software Dell used to uncover the business transaction.