@Override
    protected boolean checkAuthentication() {
        return getSubject() != null && getSubject().isAuthenticated();
    }
Tag that renders the tag body only if the current user has executed a <b>successful</b> authentication attempt
<em>during their current session</em>.

<p>This is more restrictive than the {@link UserTag}, which only
ensures the current user is known to the system, either via a current login or from Remember Me services,
which only makes the assumption that the current user is who they say they are, and does not guarantee it like
this tag does.

<p>The logically opposite tag of this one is the {@link NotAuthenticatedTag}
support/jakarta-ee/src/main/java/org/apache/shiro/ee/faces/tags/AuthenticatedTag.java