diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index 6bac875f..d903f06f 100644
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -20,6 +20,7 @@
       <option name="customHeaders">
         <set>
           <option value="X-Hangar-Verify" />
+          <option value="Content-Security-Policy" />
         </set>
       </option>
     </inspection_tool>
diff --git a/frontend/src/pages/auth/login.vue b/frontend/src/pages/auth/login.vue
index 340e343c..bbac3036 100644
--- a/frontend/src/pages/auth/login.vue
+++ b/frontend/src/pages/auth/login.vue
@@ -70,7 +70,11 @@ async function loginWebAuthN() {
     });
     await finish(response);
   } catch (e) {
-    notification.fromError(i18n, e);
+    if (e?.toString()?.startsWith("NotAllowedError")) {
+      notification.error("Security Key Authentication failed!");
+    } else {
+      notification.fromError(i18n, e);
+    }
   }
   loading.value = false;
 }
diff --git a/frontend/src/pages/auth/settings/security.vue b/frontend/src/pages/auth/settings/security.vue
index 8e4ec6fc..2cf330d0 100644
--- a/frontend/src/pages/auth/settings/security.vue
+++ b/frontend/src/pages/auth/settings/security.vue
@@ -58,6 +58,8 @@ async function addAuthenticator() {
       savedRequest.value = e.config;
     } else if (e.response?.data?.detail === "error.privileged") {
       await router.push(useAuth.loginUrl(route.path) + "&privileged=true");
+    } else if (e?.toString()?.startsWith("NotAllowedError")) {
+      notification.error("Security Key Authentication failed!");
     } else {
       notification.fromError(i18n, e);
     }
@@ -73,6 +75,8 @@ async function unregisterAuthenticator(authenticator: AuthSettings["authenticato
   } catch (e) {
     if (e.response?.data?.detail === "error.privileged") {
       await router.push(useAuth.loginUrl(route.path) + "&privileged=true");
+    } else if (e?.toString()?.startsWith("NotAllowedError")) {
+      notification.error("Security Key Authentication failed!");
     } else {
       notification.fromError(i18n, e);
     }