If Security Code of Master Account is missing. On the page where you enter the security code, you can click "Forget Security Code".
Open your mailbox, click on the right-click link, the link is valid for a short time, if the link expires, you need to re- "Forget Security Code".
Links require to input of Master Account's username and password.
After resetting the security code, the previously recorded video will not be able to decrypt and watch. The camera needs to be added again before it can re-recorded. It is suggested that the security code is safely saved.