Try reading the introductory blog post[0] before asking redundant questions.<p>[0] <a href="https:&#x2F;&#x2F;www.facebook.com&#x2F;notes&#x2F;protect-the-graph&#x2F;making-connections-to-facebook-more-secure&#x2F;1526085754298237&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.facebook.com&#x2F;notes&#x2F;protect-the-graph&#x2F;making-conn...</a>