The computation took into consideration the possibility that the companys restaurants had in fact been leaking credit card data for a period of nine months, since September 2013.According to KrebOnSecurity, Visa released a CAMS (Compromised Account Management System) alert on June 17 informing that hundreds of cards had been exposed in a recent breach that actually started on September 18.CAMS alerts are generally circulated privately by card associations to banks that issue their cards…