diff --git a/config/packages/security.yaml b/config/packages/security.yaml
index bf768d9..a5dc55c 100644
--- a/config/packages/security.yaml
+++ b/config/packages/security.yaml
@@ -21,6 +21,7 @@ security:
         check_path: app_user_login
       logout:
         path: app_user_logout
+      access_denied_url: /access-denied
 
       # activate different ways to authenticate
       # https://symfony.com/doc/current/security.html#the-firewall
diff --git a/config/routes.yaml b/config/routes.yaml
index 9286e81..7352df3 100644
--- a/config/routes.yaml
+++ b/config/routes.yaml
@@ -1,3 +1,7 @@
 controllers:
-    resource: ../src/Controller/
-    type: attribute
+  resource: ../src/Controller/
+  type: attribute
+
+access_denied:
+  path: /access-denied
+  controller: App\Controller\ErrorController::accessDenied
diff --git a/src/Controller/ErrorController.php b/src/Controller/ErrorController.php
new file mode 100644
index 0000000..ad1049d
--- /dev/null
+++ b/src/Controller/ErrorController.php
@@ -0,0 +1,19 @@
+<?php
+
+// src/Controller/ErrorController.php
+namespace App\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Annotation\Route;
+
+#[Route('/error', name: 'access_error')]
+class ErrorController extends AbstractController
+{
+    #[Route('/403', name: 'access_denied')]
+
+    public function accessDenied(): Response
+    {
+        return $this->render('error/access_denied.html.twig', []);
+    }
+}
diff --git a/templates/error/access_denied.html.twig b/templates/error/access_denied.html.twig
new file mode 100644
index 0000000..6974ea9
--- /dev/null
+++ b/templates/error/access_denied.html.twig
@@ -0,0 +1 @@
+<h1>403</h1>
\ No newline at end of file
diff --git a/templates/error/index.html.twig b/templates/error/index.html.twig
new file mode 100644
index 0000000..b56d4ec
--- /dev/null
+++ b/templates/error/index.html.twig
@@ -0,0 +1,20 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Hello ErrorController!{% endblock %}
+
+{% block body %}
+<style>
+    .example-wrapper { margin: 1em auto; max-width: 800px; width: 95%; font: 18px/1.5 sans-serif; }
+    .example-wrapper code { background: #F5F5F5; padding: 2px 6px; }
+</style>
+
+<div class="example-wrapper">
+    <h1>Hello {{ controller_name }}! ✅</h1>
+
+    This friendly message is coming from:
+    <ul>
+        <li>Your controller at <code><a href="{{ '/home/exostflash/McDoPlus/src/Controller/ErrorController.php'|file_link(0) }}">src/Controller/ErrorController.php</a></code></li>
+        <li>Your template at <code><a href="{{ '/home/exostflash/McDoPlus/templates/error/index.html.twig'|file_link(0) }}">templates/error/index.html.twig</a></code></li>
+    </ul>
+</div>
+{% endblock %}