diff --git a/src/BusProNet/Security/Authenticator.php b/src/BusProNet/Security/Authenticator.php
index 7782faf..2f94784 100644
--- a/src/BusProNet/Security/Authenticator.php
+++ b/src/BusProNet/Security/Authenticator.php
@@ -51,7 +51,7 @@ class Authenticator extends AbstractLoginFormAuthenticator implements Authentica
         }
 
         if (false === $response instanceof PersonalData) {
-            throw new CustomUserMessageAuthenticationException('User not found');
+            throw new CustomUserMessageAuthenticationException('Der Login ist fehlgeschlagen :(');
         }
 
         $csrfToken = $request->request->getString('_csrf_token');