protected function loginThrottling($identity)
    {
        $count = app('account.throttle')->throttleIdentity($identity);

        if($count >= config('store.throttle_limit')) return false;

        // Throttling delay!
        // See: http://www.codinghorror.com/blog/2009/01/dictionary-attacks-101.html
        if($count > 2) usleep(($count - 1) * 400000);

        return true;
    }