After it is reported that the US Cardsystems information is attacked by hacker, the China Construction Bank (CCB) Credit Card Center immediately launched the emergency system, maintaining close communications with Visa and Mastercard and requiring those international organizations to offer the list of cardholders influenced. On June 20 it received the list of cardholders who once used the bank’s Dragon Debit Card (dual currency) in the US. It quickly contacted those customers, offered new cards for them for free and sent the card to them by EMS, trying to minimize the impact. For those customers the bank failed to find currently, it has locked their cards and continues to contacting them. Some customers who are finally found say that they are abroad and still using the Dragon Card. The bank pays close attention to this part of customers’ cards through transaction monitoring and maintains close contact with them. Up to now no customer of CCB is found suffering any loss. The bank will continue to pay a close eye on the event and follow it up.