How often do I change the secret security settings of qq? How soon can I change it again?

In order to protect the security of your account, the encrypted phone will enter the review period. At the same time, the original mobile phone will receive SMS notification, prompting you to cancel this operation. If you don't cancel by SMS, the change will take effect after the end of the review period. In order to ensure that you can see the reminder of changing the secret-protected mobile phone, change the secret-protected mobile phone between 9:00-2 1:00, the review period is 2 hours, and the rest time is 12 hours. The review period of some numbers is 12 hours. During the review, you can send a short message "cx Your QQ Number" (such as cx 123456) to the short message port in the table below to cancel this change operation.