1. Session Puzzling and Flow Bypass Attacks on PHP Sessions2011-08-24
    This presentation looks through the dangers of logic flaws and how to properly manage sessions.
  2. Two Factor Authentication in PHP2010-04-21
    A presentation without the FUD covering accessibility, usability, cost and security of two factor authentication systems. The second half explains how to securely implement these systems in your webapp via PHP.
  3. OpenID2007-04-05
    OpenID allows users to login to sites without signing-up.
  4. Comment Spam2007-03-01
    Comment spam plagues blogs, forums and all sorts of websites. It covers different means how to prevent it.
  5. PHP Security2007-02-01
    This presentation covers common mistakes in coding, preventive measures to lock down a website and web application firewalls.