Alliance Data Systems Corp.'s Epsilon, a marketing services company, reported a data breach Friday that affected multiple banks.
According to Epsilon, only email addresses and customer names were obtained. However, many of the banks affected warned that this information could be used in phishing attacks.
JPMorgan Chase & Co., Citigroup Inc. and Capital One Financial Corp. said in announcements that their customers were affected by the breach. U.S. Bancorp said in an email to customers that it was also affected.
