    private function _getMetaTags()
    {
        $retval  = '<meta charset="utf-8" />';
        $retval .= '<meta name="referrer" content="no-referrer" />';
        $retval .= '<meta name="robots" content="noindex,nofollow" />';
        $retval .= '<meta http-equiv="X-UA-Compatible" content="IE=Edge">';
        if (! $GLOBALS['cfg']['AllowThirdPartyFraming']) {
            $retval .= '<style id="cfs-style">html{display: none;}</style>';
        }
        return $retval;
    }
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.