It would be super cool if we could have a setting to disable the WordPess core, plugin and theme auto updates functionality. This feature could be added to the WP Umbrella Autoupdate feature.
add_filter( 'auto_update_plugin', '__return_false' );
add_filter( 'auto_update_theme', '__return_false' );
and disabling core updates in wp-config.php:
define( 'WP_AUTO_UPDATE_CORE', false );