The Federal Trade Commission is mum on the case of CardSystems Solutions Inc. Breach of 40 million credit/debit cards was the largest known compromise of financial data. The FTC found that the payment processor had kept information it had no reason to keep and then stored it in a way that put consumers’ financial information at risk. In 2005, the payment processors processed about 210 million card purchases, totaling more than $15 billion, for more than 119,000 small and mid-size merchants.”]
Source: https://www.govinfosecurity.com/ftc-mum-on-heartland-breach-a-1183