How to access raw password and username before login in Wordpress?

How to get or access raw password and username before user gets authenticated in wordpress?

We can get and access raw password and username using wordpress action hook "wp_authenticate". You can get a better understanding referring the below example:

function access_credential($username, $password ) {
  if (!empty($username) && !empty($password)) {
    // You can code here as per requirement
  }
}
add_action('wp_authenticate', 'access_credential', 30, 2);