American Express Warns Customers About Breach -- From 2013 (csoonline.com)

itwbennett writes: In a notification letter dated March 10, American Express warned cardholders that their account information might've been exposed after a third-party service provider suffered a data breach — in December 2013. The company says they are monitoring accounts for fraud and advise cardholders to do the same, but they offer no explanation for the delay.