title: Hide sensitive data in html table column
body: <p>I have a html table and the first column has the id. This column is hidden. I have read now this is a bad approach. </p>
  
  <p>But I need this hidden id when the user selects a row and click the delete button to do an ajax post with this id.</p>
  
  <p>Where else should I put this id per row differently and why is this approach bad?</p>