krolewskie-miody.pl/wp-content/plugins/really-simple-ssl/settings/config/fields/hardening-basic.php

<?php
defined( 'ABSPATH' ) or die();

add_filter( 'rsssl_fields', function( $fields ) {
	return array_merge( $fields,
		[

			[
				'id'                 => 'disable_anyone_can_register',
				'menu_id'            => 'hardening-basic',
				'group_id'           => 'hardening-basic',
				'type'               => 'checkbox',
				'label'              => __( "Disable \"anyone can register\"", 'really-simple-ssl' ),
				'disabled'           => false,
				'default'            => false,
				'help'               => [
					'label' => 'default',
					'url'   => 'definition/what-are-hardening-features',
					'title' => __( "About Hardening", 'really-simple-ssl' ),
					'text'  => __( 'Hardening features limit the possibility of potential weaknesses and vulnerabilities which can be misused.', 'really-simple-ssl' ),
				],
				'recommended'        => true,
			],
			[
				'id'                 => 'disable_file_editing',
				'menu_id'            => 'hardening-basic',
				'group_id'           => 'hardening-basic',
				'type'               => 'checkbox',
				'label'              => __( "Disable the built-in file editors", 'really-simple-ssl' ),
				'disabled'           => false,
				'default'            => false,
				'recommended'        => true,
			],
			[
				'id'                 => 'block_code_execution_uploads',
				'menu_id'            => 'hardening-basic',
				'group_id'           => 'hardening-basic',
				'type'               => 'checkbox',
				'label'              => __( "Prevent code execution in the public 'Uploads' folder", 'really-simple-ssl' ),
				'disabled'           => false,
				'default'            => false,
				'recommended' => true,
			],
			[
				'id'       => 'hide_wordpress_version',
				'menu_id'  => 'hardening-basic',
				'group_id' => 'hardening-basic',
				'type'     => 'checkbox',
				'label'    => __( "Hide your WordPress version", 'really-simple-ssl' ),
				'disabled' => false,
				'default'  => false,
				'recommended' => true,
			],
			[
				'id'       => 'disable_login_feedback',
				'menu_id'  => 'hardening-basic',
				'group_id' => 'hardening-basic',
				'type'     => 'checkbox',
				'tooltip'  => __( "By default, WordPress shows if a username or email address exists when a login fails. This will change it to generic feedback.", 'really-simple-ssl' ),
				'label'    => __( "Prevent login feedback", 'really-simple-ssl' ),
				'disabled' => false,
				'default'  => false,
				'recommended' => true,
			],
			[
				'id'                 => 'disable_indexing',
				'menu_id'            => 'hardening-basic',
				'group_id'           => 'hardening-basic',
				'type'               => 'checkbox',
				'label'              => __( "Disable directory browsing", 'really-simple-ssl' ),
				'disabled'           => false,
				'default'            => false,
				'recommended' => true,
			],
			[
				'id'                 => 'disable_user_enumeration',
				'menu_id'            => 'hardening-basic',
				'group_id'           => 'hardening-basic',
				'type'               => 'checkbox',
				'label'              => __( "Disable user enumeration", 'really-simple-ssl' ),
				'disabled'           => false,
				'default'            => false,
				'recommended' => true,
			],
			[
				'id'       => 'disable_x_powered_by_header',
				'menu_id'  => 'hardening-basic',
				'group_id' => 'hardening-basic',
				'type'     => 'checkbox',
				'label'    => __( "Unset X-Powered-By header", 'really-simple-ssl' ),
				'disabled' => false,
				'default'  => false,
				'recommended'        => true,
			],
			[
				'id'                 => 'rename_admin_user',
				'menu_id'            => 'hardening-basic',
				'warning'     			=> true,
				'group_id'           => 'hardening-basic',
				'type'               => 'checkbox',
				'label'              => __( "Block the username 'admin'", 'really-simple-ssl' ),
				'email'              => [
					'title'   => __( "Settings update: Username 'admin' renamed", 'really-simple-ssl' ),
					'message' => sprintf(__( "As a security precaution, the username ‘admin’ has been changed on %s. From now on, you can login with '%s' or an email address.", 'really-simple-ssl' ), '{site_url}','{username}'),
					'url'     => 'https://really-simple-ssl.com/instructions/locked-out-after-renaming-the-admin-username',
					'condition'    => 'rsssl_username_admin_changed',
				],
				'tooltip'            => __( "If the username 'admin' currently exists, you can rename it here. Please note that you can no longer use this username, and should use the new username or an email address",
					'really-simple-ssl' ),
				'disabled'           => false,
				'default'            => false,
			],
			[
				'id'                 => 'new_admin_user_login',
				'menu_id'            => 'hardening-basic',
				'group_id'           => 'hardening-basic',
				'type'               => 'text',
				'label'              => __( "Choose new username to replace 'admin'", 'really-simple-ssl' ),
				'disabled'           => false,
				'default'            => '',
				'required'           => true,
				'condition_action'   => 'hide',
				'react_conditions' => [
					'relation' => 'AND',
					[
						'rename_admin_user' => 1,
					]
				],
				'server_conditions' => [
					'relation' => 'AND',
					[
						'rsssl_has_admin_user()' => true,
					]
				],

			],
			[
				'id'       => 'disable_xmlrpc',
				'menu_id'  => 'hardening-basic',
				'group_id' => 'hardening-basic',
				'type'     => 'checkbox',
				'label'    => __( "Disable XML-RPC", 'really-simple-ssl' ),
				'disabled' => false,
				'default'  => false,
			],
			[
				'id'       => 'block_display_is_login',
				'menu_id'  => 'hardening-basic',
				'group_id' => 'hardening-basic',
				'type'     => 'checkbox',
				'label'    => __( "Block user registrations when login and display name are the same", 'really-simple-ssl' ),
				'disabled' => false,
				'default'  => false,
				'recommended' => true,
			],
		]
	);
}, 200 );