Hi there,
Thanks for your suggestion.

I'm pleased to advise this is something we were already working on for v8.1. Security questions can now be disabled on a per-user basis via the user management modal in the admin area (Clients> Manage Users).

Version 8.1 is currently undergoing public pre-release testing. Please use this opportunity to test it out and share your feedback with us: https://whmcs.community/forum/533-whmcs-81-beta-discussion-board/

To learn more about the beta and to take part, visit https://beta.whms.com