You applied for a credit card on the credit card website of CCB, didn't you? If so, you can rest assured that CCB will keep the customer's information confidential and will not disclose it. If you get a card, you will leak information. Who dares to handle it? But remember, if you want to apply for a card, you must go to official website to apply. Nowadays, many websites don't believe what they say about handling cards as agents. This situation may steal information.