This incident with Ctrip also reminds us that nowhere is safe. Of course, I have dealt with Ctrip twice and I really feel that their service is very poor and the backend is very messy. If this incident happens, it will not matter. Strange, I have been using Alipay and haven't had any problems, so I can't comment. If you really want to protect privacy, have a bank card specifically for online shopping and a phone card specifically for connecting to it. These two are specifically for leaks.