Ctrip leak door belongs to enterprise crisis. According to the relevant information query, on the evening of March 22nd, 20 14, domestic vulnerability research institutions revealed that Ctrip system started the debugging function of user payment service interface, so that all data packets transmitted to the bank's cardholder verification interface were directly stored in the local server, including credit card users' ID cards, card numbers, CVV codes and other information that were stolen by hackers at will.