How to manage SDK app access for meetings

There is an article in the knowledge base entitled “How to manage SDK app access for meetings and webinars."  It says that I should sign in, click on my profile, and then "Admin Center." I do not see "Admin Center" as an option (I own the Zoom account and am its sole administrator). Then the article says to go to Settings, General, Security, and click on “Manage which Zoom apps can join as a participant in meetings and webinars in your organization."  I do not see that option under Security. Is the article outdated, or am I missing something about how to sign in?  My goal is to block SDK apps from joining meetings that are required to be kept confidential.