Thank you.This thing is not new; Apple has already doing such kind of thing since start to improve the quality and makes the security as better as possible. Did you receive any kind of pop-up yet? Let us know in the comments section.
You’ve taken the added security step and provided a rescue email address. Now all you need to do is verify that it belongs to you.
The rescue address you have given us is firstname.lastname@example.org Just click the link below to verify, sign in using your Apple ID and password, then follow the prompts.
The rescue email address is dedicated to your security and allows Apple to get in touch if any account questions come up, such as the need to reset or change your security questions. As promised, Apple will never send you any announcements or marketing messages to this address.