"We are dedicating substantial resources to investigating and evaluating the intrusion, which, given the nature of the breach, the size and international scope of our operations, and the complexity of the way credit card transactions are processed, is, by necessity, taking time," TJX CEO and president Carol Meyrowitz said in a statement. TJX also believes that additional drivers' license numbers, along with the related names and addresses, were compromised for the last four months of 2003 and May and June 2004. TJX collected this information when T.J. Maxx, Marshalls, and HomeGoods customers in the United States and Puerto Rico attempted to make merchandise returns without a receipt. TJX has also likely run afoul of the Payment Card Industry Data Security Standard created by Visa and MasterCard, as a number of documents sent by Visa to financial institutions that issue cards and manage Visa transactions indicate TJX was storing credit and debit card data in violation of the standard.