protected function checkPassword($member, $password)
    {
        if (empty($password)) {
            return false;
        }
        // With a valid user and password, check the password is correct
        $authenticators = Security::singleton()->getApplicableAuthenticators(Authenticator::CHECK_PASSWORD);
        foreach ($authenticators as $authenticator) {
            if (!$authenticator->checkPassword($member, $password)->isValid()) {
                return false;
            }
        }
        return true;
    }