CakePHPのSecurity->blackHoleCallBackの設定の基本

public function beforeFilter(){
        $this->Security->blackHoleCallback = 'blackhole';
        parent::beforeFilter();
    }

public function blackhole($type){
        switch($type){
            case 'csrf' :
                $this->Session->setFlash(__('不正な送信が行われました'));
                $this->redirect(array('controller' => 'topics', 'action' => $this->action));
                break;
            default :
                $this->redirect(array('controller' => 'topics', 'action' => 'index'));
                break;
        }
    }

参考：http://junichi11.com/?p=1555