---
title: "Deprecation: #84274 - Protected methods and properties in LoginController"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-84274"
source: "Changelog/9.2/Deprecation-84274-ProtectedMethodsAndPropertiesInLoginController.rst"
modified: "2026-09-14T09:47:36+00:00"
---

# Deprecation: #84274 - Protected methods and properties in LoginController

See [forge#84274](https://forge.typo3.org/issues/84274)

## Description

This file is about third party usage (consumer that call the class as well as
signals or hooks depending on it) of `\TYPO3\CMS\Backend\Controller\LoginController`.

All methods not used as entry points by `\TYPO3\CMS\Backend\Http\RouteDispatcher` will be
removed or set to protected in v10 and throw deprecation warnings if used from a third party:

-   \[not scanned\] `main()`
-   `makeInterfaceSelectorBox()`

## Impact

Calling above method on an instance of
`LoginController` will throw a deprecation warning in v9 and a PHP fatal in v10.

## Affected Installations

The extension scanner will find all usages, but may also find some false positives.  In general all extensions
that set properties or call methods except `formAction()` are affected.

## Migration

In general, extensions should not instantiate and re-use controllers of the core. Existing
usages should be rewritten to be free of calls like these.