WordPress at a glance
action is not described

application_password_failed_authentication action-hook . WP 5.6.0

Fires when an application password failed to authenticate the user.

Usage

add_action( 'application_password_failed_authentication', 'action_function_name_3686' );
function action_function_name_3686( $error ){
	// action...
}
$error(WP_Error)
The authentication error.

Changelog

Since 5.6.0 Introduced.

Where the hook is called

wp_authenticate_application_password()
application_password_failed_authentication
wp-includes/user.php 377
do_action( 'application_password_failed_authentication', $error );
wp-includes/user.php 415
do_action( 'application_password_failed_authentication', $error );
wp-includes/user.php 441
do_action( 'application_password_failed_authentication', $error );

Where in WP core the hook is used WordPress

wp-includes/user.php 279
add_action( 'application_password_failed_authentication', 'rest_application_password_collect_status' );