diff --git a/homeassistant/auth/providers/insecure_example.py b/homeassistant/auth/providers/insecure_example.py
index 9ad6da27ce3..dc003c3e6f3 100644
--- a/homeassistant/auth/providers/insecure_example.py
+++ b/homeassistant/auth/providers/insecure_example.py
@@ -102,7 +102,7 @@ class ExampleLoginFlow(LoginFlow):
         self, user_input: dict[str, str] | None = None
     ) -> FlowResult:
         """Handle the step of the form."""
-        errors = {}
+        errors = None
 
         if user_input is not None:
             try:
@@ -110,7 +110,7 @@ class ExampleLoginFlow(LoginFlow):
                     user_input["username"], user_input["password"]
                 )
             except InvalidAuthError:
-                errors["base"] = "invalid_auth"
+                errors = {"base": "invalid_auth"}
 
             if not errors:
                 user_input.pop("password")
diff --git a/homeassistant/components/auth/login_flow.py b/homeassistant/components/auth/login_flow.py
index ef2bb793662..a21854b7770 100644
--- a/homeassistant/components/auth/login_flow.py
+++ b/homeassistant/components/auth/login_flow.py
@@ -154,14 +154,18 @@ class LoginFlowBaseView(HomeAssistantView):
     async def _async_flow_result_to_response(self, request, client_id, result):
         """Convert the flow result to a response."""
         if result["type"] != data_entry_flow.RESULT_TYPE_CREATE_ENTRY:
-            if result["type"] == data_entry_flow.RESULT_TYPE_FORM:
-                # @log_invalid_auth does not work here since it returns HTTP 200
-                # need manually log failed login attempts
-                if result.get("errors", {}).get("base") in (
+            # @log_invalid_auth does not work here since it returns HTTP 200.
+            # We need to manually log failed login attempts.
+            if (
+                result["type"] == data_entry_flow.RESULT_TYPE_FORM
+                and (errors := result.get("errors"))
+                and errors.get("base")
+                in (
                     "invalid_auth",
                     "invalid_code",
-                ):
-                    await process_wrong_login(request)
+                )
+            ):
+                await process_wrong_login(request)
             return self.json(_prepare_result_json(result))
 
         result.pop("data")
diff --git a/tests/components/auth/test_login_flow.py b/tests/components/auth/test_login_flow.py
index fd0157c235e..1fa06045de6 100644
--- a/tests/components/auth/test_login_flow.py
+++ b/tests/components/auth/test_login_flow.py
@@ -54,33 +54,41 @@ async def test_invalid_username_password(hass, aiohttp_client):
     step = await resp.json()
 
     # Incorrect username
-    resp = await client.post(
-        f"/auth/login_flow/{step['flow_id']}",
-        json={
-            "client_id": CLIENT_ID,
-            "username": "wrong-user",
-            "password": "test-pass",
-        },
-    )
+    with patch(
+        "homeassistant.components.auth.login_flow.process_wrong_login"
+    ) as mock_process_wrong_login:
+        resp = await client.post(
+            f"/auth/login_flow/{step['flow_id']}",
+            json={
+                "client_id": CLIENT_ID,
+                "username": "wrong-user",
+                "password": "test-pass",
+            },
+        )
 
     assert resp.status == HTTPStatus.OK
     step = await resp.json()
+    assert len(mock_process_wrong_login.mock_calls) == 1
 
     assert step["step_id"] == "init"
     assert step["errors"]["base"] == "invalid_auth"
 
     # Incorrect password
-    resp = await client.post(
-        f"/auth/login_flow/{step['flow_id']}",
-        json={
-            "client_id": CLIENT_ID,
-            "username": "test-user",
-            "password": "wrong-pass",
-        },
-    )
+    with patch(
+        "homeassistant.components.auth.login_flow.process_wrong_login"
+    ) as mock_process_wrong_login:
+        resp = await client.post(
+            f"/auth/login_flow/{step['flow_id']}",
+            json={
+                "client_id": CLIENT_ID,
+                "username": "test-user",
+                "password": "wrong-pass",
+            },
+        )
 
     assert resp.status == HTTPStatus.OK
     step = await resp.json()
+    assert len(mock_process_wrong_login.mock_calls) == 1
 
     assert step["step_id"] == "init"
     assert step["errors"]["base"] == "invalid_auth"
@@ -105,15 +113,23 @@ async def test_login_exist_user(hass, aiohttp_client):
     assert resp.status == HTTPStatus.OK
     step = await resp.json()
 
-    resp = await client.post(
-        f"/auth/login_flow/{step['flow_id']}",
-        json={"client_id": CLIENT_ID, "username": "test-user", "password": "test-pass"},
-    )
+    with patch(
+        "homeassistant.components.auth.login_flow.process_success_login"
+    ) as mock_process_success_login:
+        resp = await client.post(
+            f"/auth/login_flow/{step['flow_id']}",
+            json={
+                "client_id": CLIENT_ID,
+                "username": "test-user",
+                "password": "test-pass",
+            },
+        )
 
     assert resp.status == HTTPStatus.OK
     step = await resp.json()
     assert step["type"] == "create_entry"
     assert len(step["result"]) > 1
+    assert len(mock_process_success_login.mock_calls) == 1
 
 
 async def test_login_local_only_user(hass, aiohttp_client):